There was a time when I used to think that HEPA air filters were the best way to go no matter what! Well, I learned the hard way that HEPA air filters have to be used for powerful HVAC systems. With a traditional HVAC system, the system fan is not powerful enough to push air through the ductwork with the dense material of a HEPA air filter. These filters are great at removing 99% of the contaminants from the air, which is fabulous for the air quality, but a lot of systems aren’t able to handle HEPA air filters. So when I was living in this new place with a regular forced air HVAC, I was wondering why I wasn’t able to achieve the temperature control settings. It was because the system wasn’t strong enough for the HEPA air filter! I came to find that I could just use a nice air purifier that utilizes a HEPA air filter to remove the contaminants from the air. For my HVAC system, I would just use a nice MERV rated air filter to do the job. After I started using these air filters, I have no troubles with my HVAC system at all! So, I still believe HEPA air filters are the best, but you really have to have a powerful HVAC system to handle them! They’re absolutely fantastic in hospitals as they keep all those contaminants out of the air and people are able to enjoy excellent air quality. If you are thinking about using these kinds of air filters, make sure to see if your HVAC system can handle them first.