Air Duct Cleaning
Dirty air duct systems are a major source of indoor air pollution. Airborne contaminants are pulled into the air ducts every time the heating and cooling system runs. Over time, these contaminants build up inside the ductwork, creating an ideal breeding ground for mold, bacteria, fungi and other microbes.
Particles drawn into the air ducts also pass through fiberglass filters and infiltrate into HVAC equipment, undermining the performance and energy efficiency of these systems. That can lead to higher repair and maintenance costs, and shorter service life in the long run.
Why clean air ducts?
Air duct cleaning is becoming a major factor in indoor air quality. More than 50 million Americans suffer from allergies, and the level of some hazardous pollutants in indoor air has been found to be up to 70 times greater than the outdoor air (USEPA). Many of these pollutants include: dirt, pollen, dust, and mold in the heating and air conditioning duct system. More and more people are becoming aware of the benefits of air duct cleaning.
| “GOLD” AIR DUCT |
“PLATINUM” AIR DUCT CLEANING |
1. Drop cloths are placed to protect flooring.
2. Prior to cleaning, plastic film is placed on supply and/or return openings. Film will be removed prior to the start up of the system.
3. Supply and return networks are zoned in order to be cleaned separately.
4. A high-efficiency dust collector will be placed at selected points throughout the HVAC system to evacuate debris under negative pressure.
5. The areas to be cleaned will be air washed, swept with forward or reversed air at 175 pounds of pressure per square inch, and power brushed and/or whipped to remove all visible dust and debris.
6. All registers, grilles, and diffusers will be air washed with high-powered, compressed air.
7. All registers, grilles, and diffusers will be washed, disinfected, and sanitized with an EPA-approved germicidal spray.
8. All service openings made to allow access for cleaning will be sealed with reusable, airtight, sheet metal access panels with gaskets screwed to ducts. All 2½” openings or smaller will be sealed with airtight knockout plugs.
9. The furnace fan will be air washed.
10. The air-handling side of the furnace will be vacuumed.
11. The filter will be removed and the chamber vacuumed.
So, what’s mold?
Simply put, molds are very small organisms that are present almost everywhere in nature including inside your home. Molds belong to a family called fungi. Other members of the family include mushrooms and yeast. Fungi are important to our environment because they break down dead material and recycle nutrients.
Just like people, molds need food (any organic material) and water (moisture) to survive. Molds digest food by excreting chemicals called enzymes. Molds find food sources in many of the materials that make up your home - wood, wallpaper, drywall and even household dust, just to name a few. Mold growth on these surfaces usually leaves a telltale sign of discoloration along with a musty odor. Once mold starts to grow, it typically reproduces by distributing spores. A small amount of mold can produce millions of spores.


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