If you are concerned about your home’s indoor air quality, you should look for HEPA filters. HEPA stands for high-efficiency particulate air filter. This certification guarantees that the filter will pick up 99.97% of the pollutants from the air. The contaminants will be as small as 0.3 microns.
Ionizers activated carbon filters, and UV (ultra-violet) filters are also helpful in increasing indoor air quality. All of these filters can be placed on HVAC systems, as well as vacuums and other appliances.