I recently discovered HEPA air filters.
These air filters are certainly the best for my central heating and cooling system.
The only thing with these HEPA air filters is that they cost a little more than the other air filters that I used to buy! But paying a little extra for these certainly wonderful air filters goes a long way. Because HEPA air filters last much longer than the respected air filters. Also HEPA air filters make the indoor air quality of my house stay good longer than the respected air filters did. It is by no means anything like having a whole home air purification plan or even a portable media air cleaner. But HEPA air filters make it so that you do not even have to think about air purification unless you have certainly exhausting air quality going on outside. That would be the only way. I am highly impressed with these HEPA air filters for my central heating and air conditioning plan unit. I would never go back to the air filters that I used to buy because these HEPA air filters are simply the best! I can tell you that once you try these things you will believe the same way that I do. They also have washable air filters available in the HEPA brand. I may end up trying those washable air filters out eventually too. Because those will be even more bang for your buck by being able to use them multiple times before having to buy replacement air filters.