Duct Cleaning Services
Large HEPA (High Efficiency Particulate Air filter...
Large HEPA (High Efficiency Particulate Air filter ), vacuum collection machines are hooked up to the ducts being cleaned. These machines create negative air pressure in the ducts, containing all the dust and debris stirred up by the cleaning process. This method of cleaning is recommended by the EPA (Environmental Protection Agency). Whenever the ducts are too small for manual entry, small access points are made and agitation devices such as brushes and compressed air nozzles are inserted. These brushes and air nozzles scour all interior surfaces of the ducts, dislodging dirt and debris which is then drawn into the HEPA filtered vacuum collector.
By accessing the duct work through the vents and small access points we maintain the integrity of the HVAC system (Cutting many large access holes, as is common with older, less sophisticated cleaning methods, can cause disruptions in the air flow and result in substantial air leakage). Air exhausting from the HEPA vacuum machines is purified to meet hospital surgical care room requirements.
During and after cleaning, instruments such as fiber-optic borescopes, closed circuit television cameras, inspection mirrors and 35mm cameras are inserted through the access points to inspect and verify cleanliness. Before and after photographs and/or videos of the system are provided on all projects.
The Penn Air Group cleans to the National Air Duct Cleaners Association's Standard ACR-2002 which clearly specifies that all surfaces of ductwork and components must be visibly clean of dust and debris.
Our experienced technicians also use drop cloths and filters to protect the air supply and environments we work in from contamination. Only EPA registered cleaners, biocides and non-toxic coatings and paints are used on your system.
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