I’m confounded. I need lots of AC. But I can’t wrap my head around how I can remove possible odor in the exhaust from the AC to outside the bldg. Ideas? Experience? Equipment? @highwayman420
2 Likes
Carbon filter on exhaust?
2 Likes
What type of AC? Your best bet in any case may be to deodorize in the room, before the AC exhausts it.
@Retiredoldguy, what do you think?
1 Like
It’s a portable. I have an extra 6" vivosun carbon filter, but can’t get in my mind how the configuration would work. @retiredoldguy I’m so excited to also find you again.
3 Likes
I do have a filter set up to deodorize the room but the AC could easily pull in air that’s not yet cleaned. TY so much for helping me @CurrDogg420
1 Like
What kind of filter? I thought of that. Would it just be a carbon filter I’d put on/in the 6" exhaust hose from the AC to the outside.
1 Like
@GrnyGrows, you might need a bigger exhaust filter for your room, if it’s not getting it done. You’ll need to have enough suction through your filter to where the room has “negative pressure”. You’ll need to duct that air outside the room to create the pressure differential. You basically have to treat your room like a large tent.
3 Likes
@GrnyGrows, I would not recommend trying to filter the exhaust from the portable AC. The additional back pressure from having the filter on the end will not allow the unit to function properly. You’d need a booster fan in between or something but you’d be playing with a fire hazard.
3 Likes
Probably won’t work on exhaust of your ac unit. I suspect the filter would restrict air and cause coil to freeze up.
How is your grow space configured? Im looking specifically for intake and exhaust, type of ac, and how it’s all setup?
2 Likes
Okay old school here. Carbon pigs? You fill pantyhose with activated carbon and hang it. Three soccer players in the house and it worked wonders in their bags.
3 Likes
@GrnyGrows Hey old lady glad to hear from you…my only thought is to make the AC exhaust into the attic space above. As @CurrDogg420 and @dbrn32 mentioned a filter on the exhaust is not a good idea. I checked and didn’t see any carbon pre-filters for portable AC units. If you are already scrubbing your air in the room then you are doing all you can with what you have. I like @JaneQP pantyhose trick to help scrub the air even more. Let us know if any of this helps or sparks another thought
3 Likes
Add it to your dryer exhaust. The lint in the pipe carries enough material to mask the smell along with a inline carbon filter you’ll be fine
That’s what I do with my portable ac unit atleast
@PharmerBob you have a carbon filter on the exhaust of your portable AC and have no issues with it getting hot???
Yes I have a portable ac , yes I have a filter on it, no I’ve never had an issue with it overheating. It’s brand name on it is Della
and it’s an online filter made for the air to flow thru not be stopped like an carbon end filter
@Retiredoldguy edited this to make it clearer
1 Like
What I did to save tent space is mount everything so that it blows into the fliter. It still sucks the air normally, just vents it through the filter now.
1 Like
I also have a portable AC that exhausts into the garage. At first I had one fan and filter in the closet. However, I often left the door to the closet open. Somedays I would walk into the garage and think Oh my - What’s that smell? It got pretty strong the further into flower they got.
This winter I added a filtered intake fan. I am hoping it will cut down on the smell pushed into the garage by the AC.
I can either have the exhaust go into the attic or back into the space where the closet is.
Intake fan and filter
Portable AC
I don’t have anything flowering right now and only running the intake fan for circulation.
At this time I don’t know if it will do what I hope.
1 Like
Thanks. I have to look at inline filters. I have two filters running in the room, incoming and outgoing. But I can’t let the AC exhaust into the room because of the heat. I’m thinking it needs to go up into the crawl space above the room.
2 Likes
In-line filter vented to dryer duct works as well
Bathrooms also use ducting to get that exhaust fan to outside you may utilize that if need be.
You’ll need dampers to stop back flow on either side
1 Like
I have intake (10 inch inline with fan) that I can pull into the grow room from either outside or from the room next to the grow room. I have an outtake (10 inch inline) that goes from grow room into the other room, removing smell, etc.
My AC is portable with an exhaust (about 6 inches) that now goes through the wall to the outside. However, I’m worried about the smell the AC exhaust will send outside. I can’t push AC exhaust into another room/garage – only to the outside. So I wanted to run the exhaust through a filter of some kind that would remove odor then simply have filtered exhaust to outdoors.
1 Like
Is it too late to cover those walls in something weather resistant?
Before installing I’d of said frp but now even just spraying it with a sealer of some sort will go a long way to not get mold and mildew growing on your drywall. It’s really exposed not even being painted