I can’t know it but my local union AC company is giving away free HVAC filters! These are just any filters either these are HEPA filters. I was curious as to why they would give away such nice air filters for free plus when I asked one of the heating plus AC workers that worked at the HVAC company he explained that the HVAC corporation was wanting more people to try these HEPA filters in the hopes that people would prefer them plus want to continue to purchase them. I was then given a free air filter myself plus I was so thrilled. I have only used the disposable air filters while they worked, they are not the best for my indoor air quality; Keeping a filter but isn’tactually a odd story, plus I have heard that they do excellent toil for your indoor air quality. As soon as I was given the free air filter I rushed property to add it to my HVAC system. I can see why they would help people buy more, plus in only the two weeks that I have used it my indoor air quality has been better than I have ever seen it. I am going to have to continue to buy air filters now, plus the superb ones, the HEPA filters, not the disposable ones that I had been using before. I was so enthusiastic about having superb indoor air quality in my house plus I could not help to tell everyone I knew about it. Which I am sure the heating plus AC company would prefer if they knew about it because that brings in more business. I am actually convinced my mom plus my Mom, plus I did friend of mine to get a HEPA filter as well plus they are all also genuinely thrilled with it.