THE MAIN REASONS FOR AIR DUCT CLEANING:
- Blowing dirt
- Dirt buildup
- Microbial growth
- Clogged air passages
HVAC (Heating, Ventilation, and Air Conditioning) and duct cleaning service has been around since the advent of air conditioning. But in recent years, it has taken on a greater importance. With the buzz phrase “Indoor Air Quality” seeping into the public consciousness, more people are becoming aware of the quality of air in the buildings they inhabit.
The dirt within a duct is a hodgepodge of whatever is floating in the air. Common particles include flakes of human skin, animal hair and dander, fungi spores, vehicle emissions particles, and soil dust. Since all of these can act as allergens to sensitive people, a buildup of these in a duct system can provide a potential pool of irritants to those who suffer from allergies.
In extreme cases, dirt buildup can become so heavy that the movement of air through the duct is restricted, resulting in less air output at increased energy costs.
Microbial growth in HVAC systems tends to occur wherever dampness is found. In California and the West, this is normally restricted to the air handler. (In humid climates, the entire duct system may be susceptible.) Microbial growth can result in higher air concentrations of microscopic organisms (fungi, bacteria, algae, etc.). This can result in illness or symptoms of illness (headache, nausea, sore throat, etc.) in building occupants. In extreme cases this has resulted in legal threats or action by building inhabitants.
Standard duct cleaning procedures can dramatically reduce or eliminate microbial growth. More information on HVAC cleaning can be obtained at the Website of the National Air Duct Cleaners Association: www.nadca.com
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