Yea hvac filters. Spreading the resistance over a larger surface area and also having a plenum makes it easier to pull air in from my understanding. Also depends on what type of filter. I like to use at least merv 8. A cheap seethrough one I imagine wouldnt matter the size but when dealing with resistance the more area for the air to flow the better I would think. I was thinking of using a hvac intake box and screen but that is money. Maybe have to build a plywood version that's permanent and cleanable.
Yea I just found that bad boy myself. All the ones I was seeing was in the 100 zone a piece. Was thinking that or two 6 inch duct flanges bolted together with a filter in between. These for the win though ! Plus not having to build shit is a big plus.
Yea I have them too but if you see the amount of dust etc that comes through those holes you might make one yourself.
That's what I typically do. Had to go ultra stealth last time and got mold from ventilation issues most likely. I'm not fucking around anymore and losing anything else.
Trying to figure out if this needs the register vent cover to make the lip for the filter to sit on? Any input folks or hvac experts in the house.
$16 for the grille cover but you probably don't need it. The suction plus a little duct tape should be all you need.
growace.com
I'd imagine you would need 2 to pull the proper amount of air into a tent. Little too pricey for my taste right now. Especially for a potential auto filter markupPhat HEPA Intake Filter, 10"
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this brand makes sizes up to 14 inches or 16 inches ( I have 14 so I know they def have that ) but they sell smaller sizes too like 6 inches as well. Coo thing about this “ greenhouse hepa” is its washable and can capture 90% as long as you wash it every 2-3 months with just water, no oil needed ( god I hate oiling them, plus extra cash and hassle )
i have “shroom” filters but they require oil and this def works better, and funny thing is they are th2e same price. It’s super well built and the holder ring for it to be tighten onto the ducting is great . If you make a little shed or have it semi indoors I bet it will last forever
It's my usual technique but I'm pulling out any stops I can this next time. Lost over a p last time and its upsetting to say the least when you have no reserve tank.
I'm currently using a new air filter to fit a recent Honda,
I built a wooden box with a duct take off on it and made a slot for a 16x20 furnace filter. I would get better pics but it’s in a corner
