Are air cleaners effective in improving IAQ?
Ion generators and ozone generators and others like mechanical filter air cleaners, electronic precipitators and hybrid air cleaners utilizing two or more techniques are not appropriate single solutions to indoor air quality problems. However they can be useful as an adjunct to effective source control and adequate ventilation. Air cleaning alone cannot adequately remove all pollutants typically found in indoor air. The value of any air cleaner depends upon a number of factors including it’s basic efficiency, proper selection for the type of pollutant to be removed, proper installation in relation to the space and faithful maintenance. Drawback with various types may include inadequate pollutant removal, redispersernent of pollutants, deceptive masking rather than removal, generation of ozone and unacceptable noise levels. Ventilation Improvement The easiest way of increasing ventilation is by opening windows and doors. However in conditioned spaces, mechanical ventilation rate can be
