If anyone living in your home has allergies, asthma, or respiratory issues of any kind, then they will not be able to live comfortably when airborne pollutants make their way into your home. While the air filter in your HVAC system may trap some pollutants, it is really designed to protect your system itself, not to boost indoor air quality. Devices such as electronic air purifiers, though, are. By removing pollutants from the air, they help residents live more comfortably.
Biological pollutants, including viruses, mold, and bacteria may also be present in the air in your home. These can lead to illness, with sick, elderly, and very young family members at increased risk of health problems. While you cannot really just filter these pollutants out of the air, as they can still reproduce on filters or in air cleaners, you can destroy them with the use of a UV air purifier.
We tend to think of the impact that airborne pollutants have on our bodies when considering the benefits of air purifiers, but air purification systems can positively impact your HVAC systems as well. If your air filters, for instance, are full of pollutants, or if dust and dirt build up on sensitive components in the system, the efficiency of that system operates will suffer. This is just one more reason for considering the use of an air purifier in your home.