Air ionizers create negative ions using electricity and then discharge them into the air. These negative ions attach to positively charged particles in the room, such as dust, bacteria, pollen, smoke, and other allergens.
An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. Air Purifiers are able to trap a high percentage of the airborne allergens and irritants that flow through the filters.
UV light destroys microbes living in air conditioners. The lights are installed in your ductwork or near the AC coil, and they destroy microbes like mold, bacteria, fungi, mildew, mold spores and viruses in the line-of-sight of the UV bulb.
ERV - Energy Recovery Ventilation
Energy recovery ventilation (ERV) is the energy recovery process of exchanging the energy contained in normally exhausted building or space air and using it to treat (precondition) the incoming outdoor ventilation air in residential and commercial HVAC systems.
ERV’s take fresh air from the outside, it then Pre-Conditions and cleans that air before delivering it to your A/C and/or Heating system; providing constant fresh clean air into your home.