If you are ever distraught 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 my local heating and air conditioner specialist made the suggestion while going an Heating and A/C tune up and check up on my central heat and air conditioner unit.
That is to get a portable a/c and a portable space furnace to have on hand in the event the central Heating and A/C equipment ever blows out on you. This way, the portable a/c or the portable space furnace can get you through a few afternoons 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 good thing about these portable Heating and A/C devices is that the portable space 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 my proper 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 my indoor air pollen levels rarely suffers if I forget to change the air filter on time. But this whole portable space furnace and portable air conditioner method is a good 1!