Thursday, March 4, 2010

Poor Ventilation Can Be A Health Hazard

It is important that the air we breathe indoors is free from harmful airborne contaminants that can be hazardous to health. That is why proper ventilation is necessary to improve and maintain indoor air quality, be it at workplace or at home.

Poor building construction can contribute to high indoor humidity and inadequate air exchange. Since normal daily activities such as breathing, bathing, and cooking create moisture, poor ventilation can spur the growth of mold.

Some of the common indoor airborne contaminants are allergens from pets and dust; carbon monoxide from appliances that burn gas; and chemicals used in the construction such as glues, particle board emissions, and paints.

Outdoor contaminants like pollen can be drawn inside by heating and cooling systems that have dysfunctional filters.

High concentration of these airborne contaminants can trigger asthma attack as well as other allergic reactions. To prevent humidity and airborne contaminants from causing adverse effects to health, two types of ventilation may do the trick:

1. Spot Ventilation – drawing air from a specific location to remove humidity and carbon monoxide and exhaust it outside.
2. Dilution Ventilation – exchanging indoor air with outdoor air via heating and cooling systems with effective filtration.

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