I will not settle for any other kind of air filter
If you are ever upset about your central heating and a/c going out on you, I have a way to completely get rid of your worries! I found out about this myself only recently when our local heating and a/c specialist made the suggestion while going an Heating and A/C tune up and check up on our central heat and a/c unit. That is to get a portable a/c and a portable space gas furnace to have on hand in the event the central Heating and A/C unit ever blows out on you. This way, the portable a/c or the portable space gas furnace can get you through a few days if needed to not have to call for emergency Heating and A/C service and save you cash on Heating and A/C repair. The great thing about these portable Heating and A/C devices is that the portable space gas furnace does not require a filter change. And the portable a/c had a small filter that is of the HEPA brand air filters. Those HEPA brand air filters are the longest lasting and best air filters I have ever experienced. As a matter of fact, HEPA air filters is all I buy for our standard central heating and a/c unit. I will not settle for any other kind of air filter. It makes it so I do not have to buy air filters as often and also it makes it so our indoor air conditions rarely suffers if I forget to change the air filter on time. But this whole portable space gas furnace and portable a/c is a great one!