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HVAC Cleaning

There are two key components to HVAC cleaning: Breaking Contaminants Loose and Collection of Contaminants.

Breaking Contaminants loose – Properly cleaning HVAC systems requires removing the sources of contamination. Source removal begins with use of one more agitation devices designed to loosen contaminants from the surfaces within the heating and air conditioning system. Examples of agitation devices include brushes, air whips, and compressed air nozzles or “skipper balls”. Agitation can also be achieved through hand brushing or contact vacuuming.

Collection of Contaminants – During cleaning, the entire HVAC system is placed under continuous negative pressure (vacuum) to prevent the spread of contaminants. Continuous negative pressure allows very fine particles to be removed from the system as they become airborne, ensuring that these particles are not released into the living space when the system is turned on after cleaning. This negative pressure also serves to extract the loosened contaminants, which are collected and removed from your home or place of business.

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System Access

HVAC system cleaning is not a complex process, but each job is unique. Where possible, access to duct interiors should be made through existing openings such as supply diffusers, return grills, duct end caps, and existing service openings. The technicians may need to cut access holes in the duct work in order to reach inside various cleaning tools. Creation of these service openings and their subsequent closure, requires craftsmanship and professional skills.

Antimicrobial Chemicals

Antimicrobial chemicals include sanitizers, disinfectants, and deodorizers that can be applied to non-porous surfaces in HVAC systems to address microbial contamination and help control odors. Only chemicals registered with the United States Environmental Protection Agency (EPA) can be used. These products should only be considered after mechanical surface cleaning has been performed and if the need for such treatment has been deemed necessary.

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