Using TWO carbon filters?

M

Mrwilliam

Member

• Apr 7, 2024

• #1

I struggle with smell around my shed where my grow tent is. Its akward when guests are outside. Especially at the end of each grow and when Im drying. Tried different brands of filters and fans, same issues.
The tent has the usual setup with a carbon filter and fan inside the tent and then tubing going outside. It's negative pressured so shouldn't be any leaks.

Would it help to put another carbon filter at the end of the tubing outside the tent?

 

Last edited: Apr 7, 2024

coreywebster

Well-Known Member

• Apr 7, 2024

• #2

It would help.
You can even get inline filters, they go in the middle of duct, rather than the end.

The best thing to do is make sure your filter is capable of handling way greater volume of air than your fan is capable of shifting, by oversized the filter/s

 

coreywebster

Well-Known Member

• Apr 7, 2024

• #3

I'd also check your existing set up for leaks.

 

Herb & Suds

Well-Known Member

• Apr 7, 2024

• #4

I suspect your current filter is undersized

 

amneziaHaze

Well-Known Member

• Apr 7, 2024

• #5

allsoo if your fan is too strong carbon filter will not work.something to do with air traveling too fast to bind to the carbon filter

 

Beeswings

Well-Known Member

• Apr 7, 2024

• #6

I'm not sure you'll be able to subdue the smells from harvesting and drying very easily.

 

dropshot

Active Member

• Apr 8, 2024

• #7

coreywebster said:

It would help.
You can even get inline filters, they go in the middle of duct, rather than the end.

The best thing to do is make sure your filter is capable of handling way greater volume of air than your fan is capable of shifting, by oversized the filter/s

Click to expand...

Link to inline carbon filter?

 

coreywebster

Well-Known Member

• Apr 8, 2024

• #8

dropshot said:

Link to inline carbon filter?

Click to expand...

Google it.

Can, CarboAir, Phresh , all good brands who make inline filters.

 

Psyphish

Well-Known Member

• Apr 8, 2024

• #9

Use an oversized filter and try pushing into it instead of pulling through it. Try using a slower fan speed as well. Carbon filters work worse if the humidity is high.

 

H

higher self

Well-Known Member

• Apr 8, 2024

• #10

Yes bigger filter & slower speed. I have 2 fan & 2 filters, one that recirculates air around the room & one that extracts. The one that extracts runs at a lower speed. I dont have to do it this way but I just repurposed all my old fans & filters that I wasnt using one day & kinda liked the way it works for me.

 

dropshot

Active Member

• Apr 8, 2024

• #11

coreywebster said:

Google it.

Can, CarboAir, Phresh , all good brands who make inline filters.

View attachment 5384611

Click to expand...

Thanks!! I had looked in the past but never found anything.

 

Drop That Sound

Well-Known Member

• Apr 8, 2024

• #12

Most filters can be made inline simply by stuffing them into a box with 2 port holes. You could even make a dual inline scrubber with 2 standard filters in the box, etc.. I would rather have 2 filters splitting the volume than running from one into another. The first one will clog up way faster than the second one in line.. Also it would be less restrictive that way.

 

Drop That Sound

Well-Known Member

• Apr 8, 2024

• #13

 

1

1212ham

Well-Known Member

• Apr 9, 2024

• #14

Drop That Sound said:

View attachment 5384656

Click to expand...

It's easy, I used a cardboard box. And several pennies worth of tape.

 

Medskunk

Well-Known Member

• Apr 10, 2024

• #15

If the rh is more than 60% the fan doesnt work efficiently. Its leaking and it smells