We have been using this filter for about 2.5 years now and it is doing a great job. MERV 11 delivers as fast a filtration rate as one could wish for in a home. Anything above that can put extra strain on your AC system. These filters do the same job as those that cost twice as much with lots of ads. There have been several complaints about the delivery, including from us, but this is to be expected due to the pandemic.
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