Electronic Air Cleaners
While your HVAC system does have a filter in it, this filter is designed to protect the interior condition of your system, not your indoor air quality. Using a more efficient air filter can help many homeowners to overcome their indoor air quality problems. However, others will find that further action must be taken. If this is the case in your home, then an electronic air cleaner may be right for you.
There are different types of electronic air cleaners out there, but they have similar operational processes. Generally, air is pulled into an ionization, as with electronic precipitators. The pollutants within that air are given an electric charge, and are then trapped on oppositely charged plates. Some models may simply release the pollutants, allowing them to adhere to surfaces in the house, from which they are removed during regular cleaning.
UV Air Purifiers
While electronic air cleaners are great for removing pollutants such dirt and dust from the air, biological pollutants, such as viruses, mold, and bacteria, cannot simply be filtered from the air. They must be destroyed, lest they continue to reproduce after being trapped by a filter or air cleaner. That is where UV germicidal lights come in.
UV air purifiers emit small, safe amounts of UV radiation within the ductwork of HVAC systems. This radiation is harmless to all living in the house. It is devastating for biological pollutants, though, destroying them at the DNA level and rendering them incapable of reproduction. They don’t filter the air, though, and must be used in conjunction with air filtration/cleaning equipment.