I use this for my intake air on my tents. Charcoal filter/fan combo that sits on the ground outside of the tent. Forces filtered air into the tent. Will always put clean air in, free of hair and dust as well. They work great!
LAYOND 4" Carbon Filter Grow Tent... https://www.amazon.com/dp/B08P1KXNYY?ref=ppx_pop_mob_ap_share