THE BEST PRE MADE HEPA FILTER; SCIENTIFICALLY CHOSEN
I have a Scientific Background so what I choose is Science Driven when it comes to this contagious/deadly infinitely small virus molecule. I RARELY write reviews but HAD To on these when I just received them today. I did my due diligence on selecting THESE. I saw these are made in CANADA ("our friends") and you get what you pay for. These may look pricey but READ! These are H-13Hepa (MEDICAL GRADE) so they are THE BEST HEPA at filtering; BETTER than  H10 or H12 HEPA. Also, they are THREE layer filters SEWN together. NOT flimsy one layer so I was not deceived on others who appear you get more.  THE BEST filter for FILTERING VIRUS and these are EXCELLENT QUALITY. Know that HEPA can be reused over and over and over again. Each HIGH QUALITY SEWN FILTER lasts AT LEAST a month depending on how much you use it.  I thank you for making these and Amazon for having these and keeping me and my fellow Americans as SAFE as possible during this highly infectious plague. CLEAN and an EXCELLENT PRODUCT FROM AWESOME CANADA!
Rating: 5 stars