Do devices that reduce particulates in the air reduce radon decay product exposure?
Yes. Air filtration devices that circulate air within a building through a filter will significantly reduce radon decay products. This is caused by two effects. One is the increased air movement within the building facilitating the contact of airborne radon decay products with fixed objects to which they adhere (they cannot be re-suspended with additional air movement or cleaning). The other effect is that as air moves through the filters, the radon decay products will adhere to the filter media, or particles to which the radon decay products are attached will be collected by the filter.
