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Carbon scrubber questions.

  • Thread starter Thread starter Xephier
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Xephier

I just got a carbon scrubber but I've got some questions going through my head that are making me have second thoughts about it.

A: Since it's a scrubber instead of a filter I won't have (hot)air being sucked from my closet and that could hurt the air circulation as well as causing my room to my a higher temp than I'd like.

B: This carbon scrubber is wrapped in what can best be described as a thin dense sheet of wool, if this was directly in my closet would it actually produce heat?

C: Carbon dioxide scrubber? When I searched carbon scrubber on Google these are the words that came up and it made me do a double take. Don't my plants need carbon dioxide? Maybe I'm just being estupido and the more likely case is that it cleans the carbon dioxide rather than removing it from the air but I'd like to be sure.
 
M

Miraculous Meds

Well-known member
Its called a scrubber when u just scrub the air, and are not exhausting with it. Its still a filter. U can exhaust with it, n I recommend it. If u exhaust the effectiveness is around 90 plus %, if u scrub its around 65%. that's what I recall from reading some time ago. the white outer filter is a pre filter to trap dust before it enters the carbon bed, causing it to clog quicker. its good to wash it a couple times a year when it gets dirty.

The filter wont produce heat except for the slight bit from the fan used to run it.

If u bought a carbon filter for the cannabis industry, its not a carbon dioxide scrubber. Its a filter with a bed of fine carbon, that eliminates odor molecules. U have to use a fan to pull air thru it though for it to be effective. Basically u force air thru it, and it scrubs the odor molecules from the air.
 
S

sourpuss

Scrubbers r the same as exhaust... depends hoq you set it up... closets need exhaust/intake system for sure.
 
X

Xephier

Miraculous Meds said:
Its called a scrubber when u just scrub the air, and are not exhausting with it. Its still a filter. U can exhaust with it, n I recommend it. If u exhaust the effectiveness is around 90 plus %, if u scrub its around 65%. that's what I recall from reading some time ago. the white outer filter is a pre filter to trap dust before it enters the carbon bed, causing it to clog quicker. its good to wash it a couple times a year when it gets dirty.

The filter wont produce heat except for the slight bit from the fan used to run it.

If u bought a carbon filter for the cannabis industry, its not a carbon dioxide scrubber. Its a filter with a bed of fine carbon, that eliminates odor molecules. U have to use a fan to pull air thru it though for it to be effective. Basically u force air thru it, and it scrubs the odor molecules from the air.
Click to expand...

So would this be the best way to hook it up then?
 
X

Xephier

Ugh. Think I messed up in my way of thinking. The white outter filter is to stop dust from getting into the carbon filter and that would be rendered useless if I tryed to push air into the scrubber instead of pulling air through it. Was hoping that I could do it like in the pic cuz that'd still allow me to exhaust air out of the room while still filtering it. I deff can't afford to buy another centrifugal fan. Would 3 passive exhausts(4 inch each), an oscillating fan and a muffin fan be enough air flow/circulation?
 
N

noyd666

I use two scrubbers with the white filter cloth =INSIDE THE FILTER , JUST ROUND IT OF AND PLACE IT IN ,AWAY YA GO. PHRESH FILTERS ON Y-TUBE INSTRUCTIONS.
picture.php
THE PREFILTER CLOTH IS INSIDE THE FILTER IF JUST SCRUBBING INSIDE, OK FOR PHRESH FILTERS AND MOUNTAIN AIR. GO DO IT.
 
S

sourpuss

Picture? What picture? Anyway.... u can suck air thru the filter and exhaust it out the closet. Its still filtered air!!!
 
M

Miraculous Meds

Well-known member
Cant see ur pic. Make sure its set to public or if its private only friends n mods can see it.

U can push air into the filter. its not as efficient but will work fine if that's the way u have to set it up. Just put the white pre filter on the inside to trap dust. If u already been running it n its dusty, u can blow it out with a air compressor. in fact I blow out the dust n wash my prefilter every 6 mo. or so n my filters last 4 to 5 years.

As to ur question of the passive exhausts n fans being enough for adequate air flow. I need to know ur grow space sq ft, n light wattage used.

But passive exhausts don't make sense to me if u want to eliminate odor from escaping the grow room. How its normally done is carbon filter in the grow room, connected to a fan pulling air thru the filter n pushing it out a duct thru a opening to the outside of the grow room. Then ur effectively creating a negative pressured room that odor doesn't escape from. its all drawn into the filter n treated. In this scenario u would need passive intakes.

Rule of thumb on air flow for kick ass exchange is 2 times a minute. U can get away with less, say once every 2 minutes though. the more u exhaust, the better u can keep high temps down, and keep fresh co2 air coming in. And u will have less probs with humidity or mold from stagnant environment.

So say u had a 5x5x8' tall room, that's 200 cu ft. So for 2 times a minute ud need a 400cfm fan. U can get away with a 200, depending on how ur temps are, but the more exchange up to 2 times a min the better.

So Do u have a in line fan? Cause if u don't u really don't have a way of utilizing the carbon filter. U need to match up the cfm of the fan ur going to use to exhaust with, with the appropriately sized carbon filter to run properly.
 
Last edited:
X

Xephier

sourpuss said:
Picture? What picture? Anyway.... u can suck air thru the filter and exhaust it out the closet. Its still filtered air!!!
Click to expand...

It's not a picture and it's not easy to see, lol. Just look below my last message. I just made a shitty diagram in windows paint.
 
who dat is

who dat is

Cave Dweller
Veteran
Xephier said:
It's not a picture and it's not easy to see, lol. Just look below my last message. I just made a shitty diagram in windows paint.
Click to expand...

There is no visible image in your post. Maybe you have the privacy settings set to viewable by only your or your friends? In any case I understand your concern but you are overthinking things. Mount the filter high up in your growspace and exhaust THROUGH it. Have the duct run from the filter to your air cooled hood if you have one and then run the ducting from your hood to your fan which is exhausting the air OUT of the tent. This will also keep negative pressure going in your growspace which is what you want so no stinky air escapes if you aren't in a legal/medical state. I would also invest in a fan speed adjuster as well to dial your fan speed up and down accordingly to reduce noise from fan speed overkill.

Spend some time reading the sticky threads in the grow forums and I'm sure a lot of your questions will be answered. Otherwise this is a really friendly and helpful community if you aren't finding the answer to a question.

:yes:
 
X

Xephier



Ya, It didn't properly upload to the site because I tried to upload it then exit the post then restart the post and insert it because for some stupid reason every time I post a new image it shows it twice in the post. That said the image posting on this forum is retarded.. The rollitup forum allows you to post full size images. Only reason I'm here is because I prefer the community here but the forum itself needs an overhaul as far as the image posting goes.
 

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M

Miraculous Meds

Well-known member
Yes that will work. A couple things. Ur passive exhausts will actually be intakes, cause ur fan pulling air from ur room, will draw air thru open holes. rule of thumb on passive intakes is twice the amount of the exhaust hole. So if u have a 6" exhaust, then 2 6" passive intakes are required for even air flow without restricting the exhaust.

but the way u have it will do the job. it would work slightly better if u would put the filter on the other side of the fan. but I understand for space, or simplicity why u might chose to have it outside. Just flip that pre filter on the inside to stop some of the dust. U could skip the pre filter on the inside of the carbon filter, n put some kind of filter on the front of the duct that's exhausting. Ud probably just have to clean it every so often.
 
X

Xephier

Miraculous Meds said:
Yes that will work. A couple things. Ur passive exhausts will actually be intakes, cause ur fan pulling air from ur room, will draw air thru open holes. rule of thumb on passive intakes is twice the amount of the exhaust hole. So if u have a 6" exhaust, then 2 6" passive intakes are required for even air flow without restricting the exhaust.

but the way u have it will do the job. it would work slightly better if u would put the filter on the other side of the fan. but I understand for space, or simplicity why u might chose to have it outside. Just flip that pre filter on the inside to stop some of the dust. U could skip the pre filter on the inside of the carbon filter, n put some kind of filter on the front of the duct that's exhausting. Ud probably just have to clean it every so often.
Click to expand...

Actually I was talking to a friend about this and I may just have the filter on the inside and then exhaust out. It would be most ideal if I could put the scrubber above the light but it's too heavy for my settup.
 
X

Xephier

Miraculous Meds said:
Cant see ur pic. Make sure its set to public or if its private only friends n mods can see it.

U can push air into the filter. its not as efficient but will work fine if that's the way u have to set it up. Just put the white pre filter on the inside to trap dust. If u already been running it n its dusty, u can blow it out with a air compressor. in fact I blow out the dust n wash my prefilter every 6 mo. or so n my filters last 4 to 5 years.

As to ur question of the passive exhausts n fans being enough for adequate air flow. I need to know ur grow space sq ft, n light wattage used.

But passive exhausts don't make sense to me if u want to eliminate odor from escaping the grow room. How its normally done is carbon filter in the grow room, connected to a fan pulling air thru the filter n pushing it out a duct thru a opening to the outside of the grow room. Then ur effectively creating a negative pressured room that odor doesn't escape from. its all drawn into the filter n treated. In this scenario u would need passive intakes.

Rule of thumb on air flow for kick ass exchange is 2 times a minute. U can get away with less, say once every 2 minutes though. the more u exhaust, the better u can keep high temps down, and keep fresh co2 air coming in. And u will have less probs with humidity or mold from stagnant environment.

So say u had a 5x5x8' tall room, that's 200 cu ft. So for 2 times a minute ud need a 400cfm fan. U can get away with a 200, depending on how ur temps are, but the more exchange up to 2 times a min the better.

So Do u have a in line fan? Cause if u don't u really don't have a way of utilizing the carbon filter. U need to match up the cfm of the fan ur going to use to exhaust with, with the appropriately sized carbon filter to run properly.
Click to expand...

435 CFM fan and ya I figured out pretty quick that I need a good exhaust. Out of curiosity I trued just having the carbon filter circulate the air within the room and within minutes my bedroom was so hot I felt like I was going to die, lol. Also the closet was a few degrees warmer. So ya I hooked that up to the exhaust that I already had going out the window and the temps appear to be back in check.
Also my arm stinks like weed because I inadvertently rubbed it all over a flowering plant (while moving my plants around) >,<
Go figure I finally got my carbon filter hooked up and now I'm walkin around smellin like Bob Marley.
 
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