HEPA filters are absolutely effective.
If you’ve ever tried a HEPA filter I would highly suggest that you try one.
If you are having any kind of indoor air quality concerns at all then these are the best kind of filter so you can try. They are excellent for your indoor air quality. I guarantee you that they will labor to give you better indoor air, for me I keep my apartment absolutely clean plus dust free so I don’t have too several concerns with indoor air quality, at least not from the inside of my home. Most of my indoor air quality concerns come from the outside, and unfortunately I live in a Dusty desert environment plus no matter how hard I try it it constantly seems like I managed to get sand plus dirt in my house. This is where the indoor air filter comes in. The HEPA filter that I have installed on my heating plus a/c does an excellent task of getting rid of that dirt plus debris. I did not constantly know that I should use a HEPA filter though, in fact for the longest time I was absolutely clueless on how to take regular care of my heating plus a/c. The only way that I learned plus found out was through some experimentation plus asking the heating, ventilation, plus A/C workers lots of questions. Luckily I had several Heating, Ventilation plus A/C workers who were kind plus willing to answer all my questions