Making and testing an exhaust fan with a carbon filter

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Icu420

Active Member
already made it
Screenshot_20210226-180153_Gallery.jpg
Screenshot_20210226-180229_Gallery.jpg
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Baaically i covered the backside of a 5.5" usb fan with a stockings bag filled with activated carbon and about 200g of it.

I think 200g is too much as it makes for about 1/2 inch layer and i think the sucktion is little to none.

I am considering taking off some 100g of the 1-2mm coal and making two of these.

I hestitate to pick this one apart and wanted to ask what a good test would be and how much suction i need.

The space i ventilate is 1x1x2ft, micro
 
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I

Icu420

Active Member
The design was good i think.
I removed about 100g and got barely enough pull for smoke to get in.

I think one or two of these will be enough and the noise is negligible or easy to mask.
 
ikushy420

ikushy420

Well-Known Member
did you ever think if you have a tent to make a housing for ur vent (fan) maybe to dampen the sound ? if they are 2 loud ? whats ur grow tent or are you growing somehwere else?
 
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Icu420

Active Member
ikushy420 said:
did you ever think if you have a tent to make a housing for ur vent (fan) maybe to dampen the sound ? if they are 2 loud ? whats ur grow tent or are you growing somehwere else?
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I will try to make an exhaust silencer box on the inside.
Here is my box
Screenshot_20210226-212443_Gallery.jpg
I use top drawer for exhaust, currently it's a rather loud shoedrier blowing out air without heating it. Passive intake from the bottom.

2nd drawer has 9 led lightbulbs, 10.5k lumens.

Plants are 3-4th drawer, 4th or 5th drawer about a gallon of soil and 6th is the electric wiring.
 
C

conor c

Well-Known Member
Icu420 said:
I will try to make an exhaust silencer box on the inside.
Here is my box
View attachment 4837919
I use top drawer for exhaust, currently it's a rather loud shoedrier blowing out air without heating it. Passive intake from the bottom.

2nd drawer has 9 led lightbulbs, 10.5k lumens.

Plants are 3-4th drawer, 4th or 5th drawer about a gallon of soil and 6th is the electric wiring.
Click to expand...
Whats your yield like i know this original setup was cfls mainly and yielded horrible so im kinda curious ive never tried micro led i use hps and rooms more lol and i guess it depends some strains test filters tbh in my experience
 
I

Icu420

Active Member
conor c said:
Whats your yield like i know this original setup was cfls mainly and yielded horrible so im kinda curious ive never tried micro led i use hps and rooms more lol and i guess it depends some strains test filters tbh in my experience
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It is my first grow in there now, just saw what i think is preflower on 2 females today and 1 male plant. Screenshot_20210226-205712_Gallery.jpg
I could've had a 4th plant.

i made a big mistake starting to train them late in week 3, lost some good leaves, switched to 12-12 after 2 weeks.

I think that if i clone the best cultivar and start bending before the 4th node on 24 light then i could've bent them around the edges of their pots and then top after 3 weeks.

They would've filled out the whole thing and it might work i think.

I hope for 30-50g now and on the next run.
 
PhishPhood16

PhishPhood16

Well-Known Member
Icu420 said:
It is my first grow in there now, just saw what i think is preflower on 2 females today and 1 male plant. View attachment 4837945
I could've had a 4th plant.

i made a big mistake starting to train them late in week 3, lost some good leaves, switched to 12-12 after 2 weeks.

I think that if i clone the best cultivar and start bending before the 4th node on 24 light then i could've bent them around the edges of their pots and then top after 3 weeks.

They would've filled out the whole thing and it might work i think.

I hope for 30-50g now and on the next run.
Click to expand...
Sorry to say, but those plants need some help. They look really sad.
 
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