Not always crazy about my electronic filters, after reading various posts I decided to try post filters for my Trane electronic air filters. I had to remove the bottom filter rail on my Trane to match Honeywell but couldn't believe the difference in air quality. I have a number of double-leaf cabinet doors with gaps, before the post-filter they were always covered with dust. Before installing these post filters, I made sure all (or most of it, lol) dust was removed. It's been at least three weeks and I have NO dust on these blinds. Just to clarify, I clean my E-Filters at least every 4 months and they take on a lot of dirt to keep them working. I will buy more of these filters! Tear
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