The last time I was having concerns with our central heating and A/C method I was not sure what was going on or what to expect really. It was an air flow issue. And it turned out the reason I was having concerns with the air flow was simply because I was not using the right type of air filters! I was using truly cheap air filters for our central heating and A/C. Which is the whole reason for the issue. So all in all it is not that poor of a problem because it was fixable by me simply going out and spending a few more bucks on better air filters for our central heating and A/C. I was gleeful I figured this out on our own and did not have to spend hundreds of dollars to have a heating and A/C professional from the local heat and A/C supplier come out just to tell me this. I would have been truly mad at myself had I easily done this. But thankfully I didn’t. The new air filters I am using for our central heating and A/C method are those easily good and high quality HEPA air filters. I have found that HEPA air filters are almost the answer to any kind of air flow or air quality issue you may be having with your central heating and A/C method unit. I will be buying nothing but the good and high quality HEPA air filters from now on. No other air filters for our HVAC unit!