Does filtration improve indoor air quality?
The use of ventilation to improve indoor air quality is the main approach taken for reducing the harmful effects of airborne pollutants that enter the home or are generated internally within the home. Ventilation helps to remove and dilute airborne pollutants within the home but may actually increase such pollutants depending on external local environmental conditions. Filtration can be used in conjunction with ventilation systems to further reduce airborne pollutants and thereby improve indoor air quality.