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The presence of microbial growth (mold) in an HVAC system is a common problem, a variety of factors can contribute to the microbial growth. The HVAC system, including piping and drain pans, can be sources of microbial growth and a transportation mode for dispersing mold spores throughout a house or commercial building.

An elevated mold condition can cause many different side effects, these can range from mild allergy symptoms to serious infections and even bleeding in the lungs and nose. 

The purpose of mold remediation is to remove moldy and contaminated materials to prevent human exposure and further damage to building materials and furnishings.
According to the U.S. EPA, you should routinely inspect your HVAC systems, not just for mold, but for moisture. Look at drain and condensate pans to make sure they are draining properly. If they are plugged, the moisture that accumulates will become a mold factory. Also make sure that all HVAC ducts and system components such as air handlers, blowers, plenums and the like are free of any moisture.
Airborne mold becomes a health concern to humans when certain types of mold and or the concentration levels are higher inside than found outdoors.  

Mold samples from air duct system  ready for laboratory analysis Mold sampling in air duct plenum area

If you suspect that the HVAC system is contaminated with mold, contact us to schedule an inspection or mold test and analysis,  our surface sample is a tape lift sample, which involves using clear cellophane tape to “lift” suspect mold from a surface.  This type of sample can be useful in identifying not only the type of mold that is present on a surface, but can also differentiate between actual mold growth and spores that settled from the air. ALL SAMPLES ARE ANALYZED BY A CERTIFIED INDEPENDENT LABORATORY.

mold sample from air duct system after 2 weeks period

Consult EPA's guide, "Should You Have the Air Ducts in Your Home Cleaned?" before taking further action.

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