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SICK BUILDINGS

As the air flows through the supply and return ducts of a building, dust particles can drop out of the air stream and collect on the inside of the ductwork. Given enough time and enough dust, the build-up can become a problem. Under the right conditions, bacteria, dust mites,and mold and mildew spores can collect in the dust then become airborn again.

Even people who are not sensitive or allergic to these contaminants can have a reaction when exposure is too intense.

Proper cleansing of the air with good filters and ultra-violet light can help to reduce problems and greatly improve the air quality.

When attempts to improve air quality are not sufficient, it may be necessary to have the ducts professionally cleaned. With the help of a powerful vacuum machine and air pessure, technicians can blast the dirt free and collect it in hepa filters. Occasionally chemical cleaners will be sprayed into the grill openings to loosen clumps of dirt that don't free up with the air movement.

Under the most extreme conditions of "sick building syndrome", the ductwork has to be replaced.

   

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