I just upgraded to the Horii Control dust shroom intake filter after 2 tries at saving a couple of dollars $$ but i ended up throwing a hundred $$ + into the trash and the humidity and temps are so much easier to control with the real deal.. better than any other intake filter I’ve tried so far. It’s an actual 0 cfm loss filter… I have 5 dogs and live in a camper rn so there’s dog hair EVERYWHERE! But I’m running ac infinity fans and am losing 0 cfm if you haven’t tried a 0 cfm loss horti control dust shroom then you’re missing out.. don’t let your tent suck in. The Dust Shroom will NOT Disappoint!!!!