Maryland Mold Removal: Symptoms Of Mold Poisoning

Toxic Black Mold: Symptoms of Black Mold Poisoning

Mildew or mold (a type of fungi), which is found in damp environment can have serious effect on human health. Every year thousands of people suffer from black mold poisoning. Let us understand and learn important steps needed to be followed in case of black mold poisoning.

image credit Buzzle.com

Black Mold
Mildew or mold (also known as black mold or toxic mold) is a type of fungi that develops and grows on surfaces in the form of powdery or downy substance. Humid/damp surfaces in combination with a very moderate temperature and sufficient amount of light provide the best conditions for mold growth. The toxic mold grows on walls, wood, clothes, food, carpets or any article such sofa (made of leather) etc. The mold growth is not confined only to walls, clothes and surfaces of furniture, it also can grow inside the equipments like air conditioners, HVAC systems etc.

The humidity level/dampness (which is the most important factor for mold growth) on the various surfaces is caused due to many conditions such as leak in the surface causing water to drip and form a damp surface, sufficient humidity in surrounding environment, condensation phenomenon etc.

What are the signs of Mold?
  • Moisture on the surfaces: Moisture or dampness on surfaces (of wall, wood, clothes etc.) can be treated as very first sign of mold growth (although moisture does not mean mold formation and growth, it is a very important condition for mold formation).
  • Stains on the wall: Yellowish stains on the wall caused due to moisture helps initial growth of mold. Look out for the greenish, blackish or brownish colored patches on the damp wall that characterizes mold growth.
  • Odor: Mildew or musty odors is one of the most prominent sign of mold growth. If you experience a musty odor near damp/humid surfaces, you should look out for the other signs of mold growth.
  • Respiratory system response in the people: If you or anyone staying in the house is hypersensitive to change in surrounding environmental conditions and experience some kind of allergic reaction or respiratory system related problems when you/the person is inside the house, then in that case there is a possibility of high mold growth.
  • Poisoning due to mold: Poisoning due to the Volatile Organic Compounds (VOCs) formed by mold is one of the most prominent sign of potential mold growth.
Black Mold Poisoning
After mold formation, it needs nutrition to grow, which it obtains by degrading the surface it is growing on. During the process of degrading surface for nutrition, mold causes formation of Volatile Organic Compounds (VOCs). These VOCs are harmful to human respiratory and nervous systems.

If a person is subjected to high exposure to Volatile Organic Compounds (VOCs) formed by mold, it affects human respiratory and central nervous systems and causes irritation to mucous membranes.

Symptoms of black mold poisoning:
Common symptoms of black mold poisoning are:
  • Uneasiness in respiration
  • Headaches
  • Cough
  • Red eyes
  • Development of rashes and hives on skin
  • Nausea
  • Memory loss
  • In some cases, people experience bleeding in lungs
  • Lethargy
  • Dizziness
  • Lack in concentration
  • Problem caused due to irritation in mucous membranes
  • Asthma
  • Allergic reactions (such as itching of nose, runny nose etc.) of respiratory and/or nervous system etc
  • Irregularity in blood pressure
  • Damaged digestion and respiratory system
  • Infections of urinary track, problems in urination etc.
  • Pain in liver and other internal organs
  • High level or prolonged exposure to mold can lead to infertility in the patient
How mold can be controlled? (Tips for controlling mold problem)
  • Moisture is one of the most important factor for the growth of mold. By making it sure that the level of moisture is under check you can keep molds at bay. (Relative humidity i.e. RH can help in finding out when you need to dehumidify your building/house)
  • If there is any water leakage/intrusion, pipe leak, roof leak, condensation problem etc; it should be prevented first.
  • Ensure the air conditioners, HVAC systems, and air/ventilation ducts are clean. Normally mold formed in these systems are more dangerous as it easily escapes the human eye inspection.
  • Bathrooms are the most prone places for mold formation and growth. The tiles, curtains and appliances inside the bathrooms should be properly cleaned/removed in order to avoid mold formation.
  • If possible, use air purifiers to cleanse the air inside your house. Air purifiers can help in reducing the airborne particles of mold spores.
  • Now a day, there are many paints/anti mold products available in market that can resist moisture and/or mold at certain level. Using such products can also help in prevention of mold.

By Nilesh Parekh
Published: 4/11/2007


How much does air duct cleaning cost?

How much does air duct cleaning cost?
Air duct cleaning usually costs about $400-$800 for an average size home - a home with 2 zones may cost $1000 or slightly more. If you are intent on getting your air ducts and ventilation system cleaned, get several quotes from reliable sources, preferably from references from friends or neighbors who have had the service done

How does a heating and air conditioning work?
The first step is to understand how your heating system and air conditioning work.

The typical residential home has a furnace (gas or oil fired, usually in the garage or basement -- homes with 2 zones will have a second furnace unit, usually in the attic) that contains a heat exchanger and blower, and is connected to air ducts in 2 directions - one main set of trunks and supply line that send the hot or cold air from the furnace out into the rooms of the house, and another return duct that circulates returning air from the rooms back into the system, creating a constant flow of air.

Return registers in your home will simply look like grills on the ceiling or walls - you will never feel air coming out of these, but air is going into them and being fed into the return air duct down in the furnace.

The return air is fed through a filter to remove any particulate pollutants (or as much as your filter can handle - cleaning and replacing air filters regularly is more important for keeping your air clean), then it goes through the heat exchanger and gets blown back out into the supply trunk line and ducts and out through the supply registers you see around your house on the floor, walls, or ceiling - these supply registers are the ones that you will feel the hot or cold air spilling out of.

What do air duct cleaners do? Do air ducts need to be cleaned?
Behind the scenes of this cooling and heating system lies all the duct work. The duct work consists of the supply main trunk and then the branching off supply branches. The main trunk looks like a long aluminum rectangled tube, often wrapped in insulation of some kind. The smaller branch supplies are normally flexible metal tubes, looking much like the dryer exhaust hose you hook up to the back of your dryer.

How does air duct cleaning work? These tubes and ducts are what is being cleaned when someone cleans your air ducts - they remove all the register covers and insert vacuum scrubbing brush units down (or up) into the ductwork, cleaning and removing buildup as they go. They will also clean around the furnace unit and the filter areas removing whatever they find. How long does it take to clean the air ducts? - usually about 2-4 hours for a home with a single air handler. Most companies that offer air duct cleaning services promote themselves as something good for your health and the health of your family.

Cleaner air is supposed to help avoid respiratory problems and diseases, like allergies and asthma. They also suggest you should clean your air ducts every 3-5 years.

According to the EPA, if you don't see a lot of mold or dust when you look into your registers, and no one in the household is suffering from allergies or unxeplained illnesses, you may be able to forego air duct cleaning. They even say that cooking, smoking, cleaning, and simply moving around your house likely causes more air pollutants than does dirty duct systems.

From the EPA website: "If no one in your household suffers from allergies or unexplained symptoms or illnesses and if, after a visual inspection of the inside of the ducts, you see no indication that your air ducts are contaminated with large deposits of dust or mold (no musty odor or visible mold growth), having your air ducts cleaned is probably unnecessary. It is normal for the return registers to get dusty as dust-laden air is pulled through the grate. This does not indicate that your air ducts are contaminated with heavy deposits of dust or debris; the registers can be easily vacuumed or removed and cleaned."

This article states that "if, after a visual inspection of the inside of the ducts, you see no indication that your air ducts are contaminated..."

Well How Are You Going to See Inside Your Air Ducts?


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Indoor Air Quality in Montgomery County Md

 There is certification place that calls itself the "Indoor Air Quality Association".

From the IAQA website I found this:

Hire a Qualified Professional

Indoor air quality problems can have a major impact on occupant health and comfort. When indoor air quality issues arise, it is important to make sure that only highly-qualified individuals are called upon to investigate, mitigate and confirm that a problem has been properly resolved.

The Indoor Air Quality Association (IAQA) offers the premiere IAQ educational courses in the industry. Those IAQA members who have received this education and had the experience and knowledge to earn independent certification by the American Indoor Air Quality Council (AmIAQ) are among the most qualified IAQ experts in the world.

IAQA members with AmIAQ certifications are the experts called upon by the general public and building management to provide practical solutions to complex IAQ problems.

Hire Only the Best – Trained and Certified IAQA Members

When hiring a professional consultant or contractor it is important to hire a company with qualified and certified staff that will be following industry standards and guidelines to ensure a job done right.

IAQA offers training course for various kinds of IAQ and mold specialists, including assessment and remediation programs available to IAQA members in the various indoor air disciplines.

Indoor Environmental Quality Consulting Course

* Indoor Environmental Consultant
* Indoor Environmentalist

Microbial Assessment Course

* Microbial Consultant
* Microbial Investigator
* Residential Mold Inspector

Microbial Remediation Courses

* Mold Remediation Supervisor
* Mold Remediator
* Mold Remediation Technician

IAQA recommends and endorses the certification programs of the American Indoor Air Quality Council (AmIAQ), an independent certification body. AmIAQ offers board-awarded certification in categories closely corresponding to IAQA educational programming. To become certified, an individual must meet experience eligibility requirements and pass a rigorous examination. Those who obtain IAQA training and earn AmIAQ certifications have demonstrated experience, education, and knowledge.

AmIAQ is a member of the Council of Engineering and Scientific Specialty Boards (CESB) and has certification programs accordance with CESB rules.

Finding a Qualified Professional
IAQA has made the process of finding these qualified professionals easy.
Click here to search for a member in your region by area code. A list of current IAQA members will appear.

IAQ Professionals Should be able to supply their customers with:

* Company qualifications, including certifications
* Start and completion dates for the project
* Certificate of insurance & applicable licenses
* References

What to look for when Hiring an IAQ Consultant or Contractor

Studies have shown that most people spend 90% of their time in indoor environments. Indoor air quality (IAQ) issues impact the lives of people across the globe. Problems with poor air quality in buildings and homes can result in health concerns, liability issue, lost productivity, and decreased property values.

IAQ problems in non-industrial buildings such as homes, schools and offices are often caused by complex, inter-related issues. Diagnosing and fixing the sources of poor IAQ may require the professional expertise of one or more consultants or contractors. It is important that individuals be highly qualified to fully investigate, identify and/or mitigate the total problem according to recognized industry standards and guidelines. Verification of contracting or remediation work, if requested, should be conducted by an equally qualified third-party consultant.

Many firms are available today to help find solutions to IAQ problems. However, in most parts of the country the IAQ industry is not regulated. Therefore, it is important to make sure that you utilize a qualified professional.

The good news is there is an easy way to make sure that only qualified individuals and firms deal with these complex problems. The largest organization of trades and professionals dealing with IAQ issues is the Indoor Air Quality Association (IAQA). Since 1995, IAQA has delivered the industry’s most prestigious and respected IAQ and mold training programs. Many IAQA course alumni with sufficient experience and knowledge have also become certified by the American Indoor Air Quality Council (AmIAQ), prestigious, independent certification body for the industry. These trained and certified professionals are available to resolve your IAQ issues.

For more information, please contact:

Indoor Air Quality Association, Inc.
12339 Carroll Avenue
Rockville, MD 20852
Phone: (301) 231-8388
Fax: (301) 231-8321
E-mail: info@iaqa.org

From Maryland Air Duct Cleaning

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Prices Charged for Air Duct Cleaning

Air duct cleaning services in Maryland offering low prices, the lowdown
Many companies promise to clean air ducts for incredible low prices like $ 79 whole house coupons but don’t actually have the proper equipment, training or even the intention to provide real results. And what’s worse? Improper air duct cleaning can cause health problems in your family.
read about Bait and Switch here

Air Duct Cleaning Pricing
Depending on type of method that is chosen by the individual, the price for their air duct cleaning or furnace cleaning will vary. Not only does the method help to establish a basic price range, but these other factors will help as well: type of system, size of system, how long it will take to complete the duct cleaning process and how long the worker invests him or herself in the process of duct cleaning. Not all companies in Maryland take all of these things into consideration, but they do rely heavily on one or more of these topics in order to come up with an estimate. In addition, one may consider how difficult or easy it is to access a unit that needs to be cleaned, the climate of the area in Maryland that the house is situated in, and the level of focus or concentration that the worker requires in order to successfully complete his job.

Whoever may be performing the air duct or furnace cleaning process will likely also affect the price. Most often, the specific dollar amount can range anywhere from $450 to over $1,000. If a person has been able to set up a quality reputation in the field of duct cleaning, then odds are they will be able to charge a higher fee for their air duct cleaning services. However, their competition may not be able to charge as much, simply because they do not have the same clout that their duct cleaning competition has been able to create.

Suggestions for Choosing a Duct Cleaning Service Provider

To find companies that provide duct cleaning services contact the National Air Duct Cleaners Association (NADCA) at the address and phone number in the information section located at the end of this guidance. Do not assume that all duct cleaning service providers are equally knowledgeable and responsible. Talk to at least three different service providers and get written estimates before deciding whether to have your ducts cleaned. When the service providers come to your home, ask them to show you the contamination that would justify having your ducts cleaned.
bulletDo not hire duct cleaners who make sweeping claims about the health benefits of duct cleaning -- such claims are unsubstantiated. Do not hire duct cleaners who recommend duct cleaning as a routine part of your heating and cooling system maintenance. You should also be wary of duct cleaners who claim to be certified by EPA. EPA neither establishes duct cleaning standards nor certifies, endorses, or approves duct cleaning companies.
bulletDo not allow the use of chemical biocides or chemical treatments unless you fully understand the pros and the cons (See "Unresolved Issues of Duct Cleaning).
bulletCheck references to be sure other customers were satisfied and did not experience any problems with their heating and cooling system after cleaning.
bulletContact your county or city office of consumer affairs or local Better Business Bureau to determine if complaints have been lodged against any of the companies you are considering.
bulletInterview potential service providers to ensure:

  • they are experienced in duct cleaning and have worked on systems like yours;
  • they will use procedures to protect you, your pets, and your home from contamination; and
  • they comply with NADCA's air duct cleaning standards and, if your ducts are constructed of fiber glass duct board or insulated internally with fiber glass duct liner, with the North American Insulation Manufacturers Association's (NAIMA) recommendations.
bulletAsk the service provider whether they hold any relevant state licenses. As of 1996, the following states require air duct cleaners to hold special licenses: Arizona, Arkansas, California, Florida, Georgia, Michigan and Texas. Other states may require them as well.
bulletIf the service provider charges by the hour, request an estimate of the number of hours or days the job will take, and find out whether there will be interruptions in the work. Make sure the duct cleaner you choose will provide a written agreement outlining the total cost and scope of the job before work begins.

Source: US Environmental Protection Agency

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HVAC System what exactly IS an HVAC air duct system?

What is HVAC?

Hvac – an acronym for Heating, Ventilation & Air- Conditioning

Heating and air-conditioning systems (including the air duct system) control the temperature, humidity, and the total air quality in residential, commercial, industrial, and other buildings. Heat pumps, which are similar to air conditioners but can be reversed providing both heating and cooling for a home. Heat pumps uses mechanical energy to pump heat “up the temperature scale” from a cooler region to a warmer one, and it does this by changing the pressure of a working fluid called a refrigerant. Heat pumps are more complex, and because they run in both summer and winter, they often require more maintenance and need to be replaced more frequently than traditional furnaces and air condition

Heat Pumps Fall Under Different Categories Such As:

* Air-Source Heat Pumps
* Ground Source (Geothermal)
* Water Source Heat Pumps

Who Install, Repairs and Maintains these Systems?

Individuals that specialize in heating, air-conditioning, and refrigeration, and they go by the terms technicians, mechanics and installers. They install, maintain, and repair systems. Heating, ventilation, air-conditioning, and refrigeration systems many times referred to as HVACR systems, these repair technicians may also be called HVACR technicians. Properly trained technicians repair, and maintain systems, but you will find that many have elected to specialize in installation, maintenance & repair, heating systems, refrigeration care, or air conditioning. Finding a technician who specializes is a brand or special equipment type is another great way to locate the right technician for the job. It always a good idea to find a technician that is familiar with our brand or type of system.

What Are the Component Units?
Heating, air-conditioning, heat pumps and refrigeration systems are a dizzying mix of many mechanical, electrical, and electronic components. These include components such as motors, compressors, pumps, fans, air ducts, pipes, thermostats, 4-way reversing valve, bi-directional expansion valve, thermal expansion valve
or " TEV ", air conditioner compressor ,condensing coil, air filters, refrigerants, room thermostat, electrical switches, fuses or circuit breakers, blower fan, numerous switches, and more

Air Conditions Systems how do they Work?

Air conditioning or heat pump compressor which compresses low pressure refrigerant gas into a higher pressure, higher temperature gas. Usually the compressor is in the outdoor portion of an air conditioning or heat pump system. The compressor is basically a high pressure pump driven by an electric motor
A condenser or condensing unit: typically a condensing coil inside which high temperature high pressure refrigerant gas flows, and over which a fan blows air to cool the refrigerant gas returning it back into a liquid state (this transfers heat from the refrigerant gas to the air being blown by the fan).

A metering device which dispenses liquid refrigerant into a evaporator coil.
The metering device may be basically a thin section of tubing (a capillary or "cap" tube) or it may be a bit more sophisticated thermostatic expansion valve (TEV ) which includes a temperature sensing control that can open and shut the device against refrigerant flow an evaporator coil or cooling coil: usually the cooling coil is a section of finned into which liquid refrigerant is metered and permitted to evaporate from liquid to gas state inside the coil.

An air handler and blower unit which provides a fan, that blows building air across or through the evaporator coil. The air handler blower fan unit moves building air across the evaporator coil surface in order to condition building air by cooling it (this removes moisture from the cooler air).A duct system which sends conditioned air from the air handler into the supply ducts, and which then takes air from the ducts and returns it to the cooling system air handler.

Controls and features , which include a room thermostat, electrical switches, fuses or circuit breakers, condensate handling system, and air, filters.

Many Air Duct Cleaning Services offer cut rate bargain pricing based on vacuuming the air conditioning air ducts only. For such a low price those service companies are not likely to clean or even inspect the other important components of your HVAC air duct system, such as condensers, drain tanks, other places where condensation can collect and create conditions conducive to mold formation.

Vacuum collection alone does not clean the HVAC system. Brushes, air whips, "skipper balls" and other tools that agitate contaminants and debris scrub the surfaces within the air duct system and propels contaminants and debris into the vacuum collection device(s).

Anti-microbial chemical sanitizers are applied to the interior surface of the air ducts to control microbial contamination...but...before sanitizers are used, the system should be thoroughly cleaned. All anti-microbial chemicals used must be EPA registered for use in HVAC systems.

The purpose of residential air duct cleaning is to remove these contaminants from a home's HVAC system to get the best indoor air quality.


Air Duct Cleaning

Air duct cleaning may not seem like a vital part of owning a home or an apartment in Maryland, but when it comes to the air duct, if it is not cleaned regularly and properly, there can be costly and grave effects as a result. More and more, we are learning about air pollution and its negative aspects. One of the ways in which the indoor air of a Maryland home can be improved in quality would be to have the air ducts cleaned. This eliminates or reduces the dust and other pollutants within the heating and cooling units of a home. Many homeowners in Maryland understand that this process is important in terms of the upkeep and the quality of the indoor home environment. Furnace cleaning is a major part of the duct cleaning process.

There are a number of different components that make up the heating and cooling system of the home. When a person in Maryland comes in to provide duct cleaning services, they need to make sure that they clean all the pieces of the system. If they do not do so when they are performing the air duct cleaning process, then there will still be some dirty and dusty areas within the system. Any potentially positive aspects that the air duct cleaning service in Maryland may have been able to provide would likely be cancelled out and negated due to the messy areas that remain.

There are quite a few methods that have been used by individuals in Maryland when they perform the process of air duct cleaning. While many of the people that are trained in cleaning air ducts in one specific method, this is not the only one available. Still, it is the one that is almost always used because of its efficiency and effective nature. This is the method that is used by associations that are involved in the duct cleaning process that are especially concerned with making sure that the job as done right. These are referred to as the industry’s standards.

When it comes to duct cleaning or furnace cleaning, the first thing that the Maryland service provider will need to do is use specialized tools that he has received training with, in order to remove all of the dirt, pollen, debris and other airborne pollutants from the inside of the air duct and the furnace. Once all of the material has been removed from the pieces, the individual can begin to remove all of the loose particles from the air duct. This is performed with the help of a very powerful vacuum cleaner that is designed with high standards in mind. The vacuum cleaner works to remove all of the material that has been scraped off and knocked off of the insides of the pieces of the air duct, and then in some cases a chemical component is added to the inner lining of the air duct and furnace in order to help prohibit the collection of debris inside, maximizing the potential for the air duct to remain clean. It is important to note that the chemicals should not be used until the inside of the air duct has been properly and sufficiently cleaned and all loose debris has been removed.

Depending on type of method that is chosen by the individual, the price for their air duct cleaning or furnace cleaning will vary. Not only does the method help to establish a basic price range, but these other factors will help as well: type of system, size of system, how long it will take to complete the duct cleaning process and how long the worker invests him or herself in the process of duct cleaning. Not all companies in Maryland take all of these things into consideration, but they do rely heavily on one or more of these topics in order to come up with an estimate. In addition, one may consider how difficult or easy it is to access a unit that needs to be cleaned, the climate of the area in Maryland that the house is situated in, and the level of focus or concentration that the worker requires in order to successfully complete his job.

Whoever may be performing the air duct or furnace cleaning process will likely also affect the price. Most often, the specific dollar amount can range anywhere from $450 to over $1,000. If a person has been able to set up a quality reputation in the field of duct cleaning, then odds are they will be able to charge a higher fee for their air duct cleaning services. However, their competition may not be able to charge as much, simply because they do not have the same clout that their duct cleaning competition has been able to create.

National Air Duct Cleaners Association

The National Air Duct Cleaners Association (NADCA) was formed in 1989 as a non-profit association of companies engaged in the cleaning of HVAC systems. Its mission was to promote source removal as the only acceptable method of cleaning and to establish industry standards for the association.
NADCA has expanded its mission to include the representation of qualified companies engaged in the assessment, cleaning, and restoration of HVAC systems, and to assist its members in providing high quality service to their customers. The goal of the association is to be the number one source for the HVAC cleaning and restoration services: first time, every time.
NADCA has experienced phenomenal membership growth and has been extremely successful with the training and certification of air systems cleaning specialists, mold remediators, and HVAC inspectors. The association has also published important standards and guidelines, educational materials, and other useful information for the consumer and members of NADCA.
Today, NADCA standards and certification are specified on a regular basis to ensure that HVAC systems are assessed, cleaned, and restored in a safe and efficient manner.

NADCA Code Of Ethics
We will serve our customers with integrity and competence.
We will perform our work using source removal methods.In order to eliminate or prevent the delivery of airborne pollutants into indoor air spaces through HVAC ductwork, we will remove the dust and others contaminants from the system.Thus,we pledge to administer source removal methods, cleaning the system ductwork as thoroughly as possible,before applying any coatings or treatments, including deodorizers, disinfectants, and/or sealants
We will be honest and forthright in our advertising.
We will provide our clients with accurate inspections and evaluations of the cleanliness and physical condition of their HVAC systems,using this information to determine the type of cleaning and maintenance services required, if any.
We will provide only necessary and desired services to our clients, and will not use furnace/air duct cleaning as a means of selling unnecessary or unwanted products or services.
We will provide services only after completing the necessary bonding and licensing procedures.
We will utilize the services and products of those who possess specialized skills, tools, or trades not possessed by us when circumstances call for work to be done which we are unable to perform.
We will stay abreast of new developments in technology, tools of the trade, building codes, the Uniform Mechanical Code, and any other codes or information that directly affects our work.
We will require that all employees of our firm practice furnace/air duct cleaning in accordance with NADCA Guidelines and the Code of Ethics.
We will perform our services in accordance with the current published standards of the Association. If I will be unable to clean in accordance with NADCA standards, I agree to disclose this limitation to my customers at the point of sale,in advance of any cleaning.

The Ethics Committee shall hear and investigate charges of unethical conduct between concerned parties,and will make recommendations to the Board of Directors concerning the resolution of those charges.


NADCA Recognizes Safe HVAC Inspection and Maintenance Contractors of 2008

“NADCA members have made the decision to set themselves apart from other service providers by committing themselves to the best practices in HVAC assessment, cleaning and restoration,” explained NADCA Executive Director John Schulte. “The NADCA Safety Award recognizes our members who have made and followed through on a commitment to safety for their employees, their customers and for the communities they serve. This dedication to safety is one more reason that NADCA-member HVAC inspection, maintenance and restoration contractors are both the employers of choice and the service providers of choice in their communities.”

The criteria for NADCA’s Safety Awards are based on regulations and recommendations from the U.S. Occupational Safety & Health Administration, NADCA’s ACR 2006 standard and other best practices. The awards are presented annually.

HVAC system cleaning is the process by which heating, air conditioning, and ventilation systems are cleaned to remove excessive accumulations of dust, debris, and biological contaminants. With heightened public awareness of the dangers of indoor air pollution and the need for home energy efficiency, the demand for professional HVAC system cleaning has increased dramatically.

Maryland Air Duct Cleaning by
HomePro Restoration, Inc.
5715 Industry Lane #2
Frederick, MD 21704

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