If you are wanting wonderful air filters for your central heating plus air conditioning plus can nor afford the legitimately best in HEPA air filter brands there is one alternative to this, then and that alternative is to get generic brand washable air filters! Because with any kind of washable air filter you can make it so that you do not have to go to the store as much to buy air filters for your central heating plus air conditioning unit.
Using generic washable air filters can be just as wonderful as the HEPA brand air filters for your central heating plus air conditioning if you clean them when they need to be washed plus you change them out to do this at least once a month, however the washable air filters for your central heating plus air conditioning can last up to 6 months per every other air filter if you do things right plus do not leave them unwashed for too long! I have been using washable air filters of the generic brand for my central heating plus air conditioning device for about 10 months now plus they are super wonderful.
It is just like having the HEPA brand air filters for my central heating plus air conditioning even though I just have to clean them at least once a month. If you have not tried generic washable air filters for your central heating plus air conditioning device I will highly recommend that you do; You will be legitimately happy that you did it!