Understand the air duct cleaning process to ensure that you have cleaned the duct well enough, and surely breathe unpolluted air. Be aware of the air duct cleaning process to be assured of the quality of air that gets into your lungs. For instance, a sealant for moldy growth is not only a bad solution, but also may aggravate the problem.
Inspect Prior to Cleaning
A routine system check on the air inflow system gives background information of the ductwork and ventilation involved; it also helps to identify problems, if any, in the air flow system. Your air duct cleaning service provider may suggest sealing duct air leaks; this truly saves energy and helps cut down your utility bills. A clogged filter may be identified and replaced; high-efficiency pleated filter or an electrostatic filter may replace a fiberglass one. An inspection may lead to the detection of a mold problem that needs to be sorted out before beginning the air duct cleaning processes. If your ductwork is made of sturdy sheet metal ducts, a biocide may be applied for sanitation; know that you can’t use a biocide on a fiberglass ductwork or on a metal duct with fiberglass lining.
Create Negative Pressure
Vacuum cleaning, that creates negative pressure, uses compressed air to remove any dirt and debris from the system. It is always safe to exhaust the dust articles to the outdoor air; any indoor exhaust must use a HEPA-filtered vacuum. Sometimes, the entire system is subject to negative pressure to dislodge the dirt and debris, before any mechanical cleaning.
Clean the conduits that run throughout the system. Cleaning involves using specialized tools, like nylon brushes or cable driven brushes, in conjunction with a high-powered vacuum on the supply and return section of the system. For fiberglass lined ducts or fiberboard ducts, use soft-bristled brushes. An insulated air duct should never get wet; if it gets wet or moldy, do not attempt cleaning because replacing is the best solution. Return registers usually pull in polluted air and gets dusty; these can easily be removed and cleaned, or simply vacuumed. Sealants can be used to repair damaged fiberglass insulation or to make a duct air tight; apply sealants only after completing the air duct cleaning process. air duct cleaning
Clean Other Components
Ask your qualified service provider to clean all components of your heating and cooling system-the heat exchanger surface, sides of the cooling coil, coil fins, coil drain pan, plenum, cabinet interior, combustion chamber, humidifier and blower blades. Dryer vent cleaning also prevents possible fire hazard. Be aware that any asbestos containing equipment has to be handled by specially trained and equipped staff. An EPA approved sanitizer may be used to clean the interiors of the ducts and the ventilation system; please be informed about the health and safety issues regarding the components of the registered antimicrobial products.
You can do a random visual check for the presence of dirt on any your supply and return ducts, and ensure that the air duct cleaning process has been a thorough one. Check that all the air vents–the registers, grilles and diffusers look clean, and have been reattached in position. Also check the system operation post-cleaning, in both the heating and cooling modes. Know your air duct cleaning process, and make sure that the indoor air that you inhale is indeed of good quality