From: Indoor Air Facts No. 7 - Residential Air Cleaners - http://www.epa.gov/iaq/pubs/airclean.htmlAir cleaners may reduce the health effects from some particles - small solid or liquid substances suspended in air, such as dust or light spray mists.Some ai| US EPA
Excerpted from: Residential Air Cleaners - www.epa.gov/iaq/pubs/residair.htmlWith the exception of the DOD method in Military Standard 282 (see reference 1 below), used only to rate particle reduction by high efficiency filters, the federal government has| US EPA
From: Indoor Air Pollution: An Introduction for Health Professionals - http://www.epa.gov/iaq/pubs/hpguide.htmlIon generators act by charging the particles in a room so that they are attracted to walls, floors, tabletops, draperies, occupants, etc. Abras| US EPA