When I went to buy air filters for my central heating and air conditioning system last time they were all sold out of the usual HEPA air filters that I buy.
I am not used to really having any other kinds of air filters other than the HEPA brand air filters for my central heating and air conditioning system unit.
So I had to buy these generic air filters instead because I could not go without any air filters in my central heating and air conditioning system. If you do not put some kind of air filter in your central heating and air conditioning system it will possibly cause it to work overtime and eventually burn out the motor. And that could mean either a motor replacement or the investment into a brand new and very expensive central heating and air conditioning system which would cost thousands! This is why I had to settle for generic air filters. Well I will tell you that having these things were not the same. They really did not make the air quality in my home very good and I ended up having to change these air filters at the end of every single month! Not good! I eventually got fed up with it all and decided to just go online and order some HEPA brand air filters from this one website and have them shipped to my house. Sure it was a little more expensive, but I would do anything to have my HEPA air filters over these generic air filters that were not doing me nor my central heating and air conditioning system any good.