How long do carbon filters last? - Growroom Designs & Equipment - International Cannagraphic Magazine Forums

snowywolfy · 06-25-2017, 03:20 AM

I'm thinking of building a carbon filter for my pc grow, I might try buy a small one but i have to know when to replace it because if it smells I'll be in deep shit. Any way of knowing when it needs to be changed guys?

Speed of green · 06-25-2017, 04:45 AM

It will gradually start to fail, it wont be a 100% failure instantly. My large ones last for a year or more. for a smaller one im not sure, it probably depends on the CFM's and the level of the odor.

You could build two so you always have a backup.

yesum · 06-25-2017, 05:06 AM

For me with a 4" x 12" I have been getting 1 1/2 grows. So not long at all. I have the cfm rate turned way down to where it barely gets negative pressure, so not sure why they do not last longer.

I have a refillable type now and just buy the carbon.

acridlab · 06-25-2017, 05:09 AM

can lite and phresh give me a full year before i get comments

MJINC · 06-25-2017, 10:42 AM

Will depend on the size and the quality of the filter. Can are pretty good and so are black ops. Found both lasted a year before needing replacing

Floridian · 06-26-2017, 01:44 AM

I use portable units which you really never hear about,having one on wheels can be either great or not of good use depending on what you're doing.I get three good flowering phases before it starts to be ineffective,180 days at least.I like the Allerair with only the carbon filter

Reaper · 06-28-2017, 03:21 PM

Watch your humidity. Humidity kills your filter's lifetime.

DocTim420 · 06-28-2017, 03:58 PM

Hard to say what the life of a carbon filter really is.

I have a "scrubber" setup: Jumbo Can150 filter suspended from ceiling with a 14" fan that is on 24/7. It is about 5+ years old and my odor detector (nose) says it is still effective.

Can I detect any tell tale odors outside the flower environment? Nope. Are there strong aromas inside the flower? Yes.

What happens when I turn the scrubber off? Odors begin to emanate outside the flower environment and waif throughout the place. In other words--it stinks when the scrubber is turned off; but "no stink" when it is turned on.

I estimate my flower environment to be around 910 cubic feet.

snowywolfy · 06-29-2017, 04:06 AM

Quote:

Originally Posted by Speed of green

It will gradually start to fail, it wont be a 100% failure instantly. My large ones last for a year or more. for a smaller one im not sure, it probably depends on the CFM's and the level of the odor.

You could build two so you always have a backup.

i mean they gunna have to be pretty small

Farm Hero · 11-02-2017, 06:06 AM

I've baked carbon pellets at 500 degrees in the oven to remove humidity and gotten much longer life as a result.

It is really humid here up until winter.

06-25-2017, 03:20 AM	#1
snowywolfy Member Join Date: Feb 2017 Posts: 87	How long do carbon filters last? I'm thinking of building a carbon filter for my pc grow, I might try buy a small one but i have to know when to replace it because if it smells I'll be in deep shit. Any way of knowing when it needs to be changed guys?
	Quote

06-28-2017, 03:21 PM	#7
Reaper Member Join Date: May 2006 Posts: 82	Watch your humidity. Humidity kills your filter's lifetime.
	Quote 1 members found this post helpful.

11-02-2017, 06:06 AM	#10
Farm Hero Registered User Join Date: Feb 2010 Location: in the sticks Posts: 152	I've baked carbon pellets at 500 degrees in the oven to remove humidity and gotten much longer life as a result. It is really humid here up until winter. __________________ https://www.icmag.com/modules/ICStra...strain&id=2959
	Quote 1 members found this post helpful.

06-25-2017, 04:45 AM	#2
Speed of green Member Join Date: Feb 2015 Location: SoCal Posts: 627	It will gradually start to fail, it wont be a 100% failure instantly. My large ones last for a year or more. for a smaller one im not sure, it probably depends on the CFM's and the level of the odor. You could build two so you always have a backup.
	Quote

06-25-2017, 05:06 AM	#3
yesum IC Mag Supporter Join Date: Dec 2009 Posts: 3,397	For me with a 4" x 12" I have been getting 1 1/2 grows. So not long at all. I have the cfm rate turned way down to where it barely gets negative pressure, so not sure why they do not last longer. I have a refillable type now and just buy the carbon.
	Quote

06-25-2017, 05:09 AM	#4
acridlab Senior Member Join Date: Jan 2014 Posts: 1,692	can lite and phresh give me a full year before i get comments
	Quote

06-25-2017, 10:42 AM	#5
MJINC Member Join Date: Feb 2015 Posts: 130	Will depend on the size and the quality of the filter. Can are pretty good and so are black ops. Found both lasted a year before needing replacing
	Quote

06-26-2017, 01:44 AM	#6
Floridian Senior Member Join Date: May 2012 Posts: 1,899	I use portable units which you really never hear about,having one on wheels can be either great or not of good use depending on what you're doing.I get three good flowering phases before it starts to be ineffective,180 days at least.I like the Allerair with only the carbon filter
	Quote

06-28-2017, 03:58 PM	#8
DocTim420 The Doctor is OUT and has moved on... Join Date: Oct 2016 Posts: 1,192	Hard to say what the life of a carbon filter really is. I have a "scrubber" setup: Jumbo Can150 filter suspended from ceiling with a 14" fan that is on 24/7. It is about 5+ years old and my odor detector (nose) says it is still effective. Can I detect any tell tale odors outside the flower environment? Nope. Are there strong aromas inside the flower? Yes. What happens when I turn the scrubber off? Odors begin to emanate outside the flower environment and waif throughout the place. In other words--it stinks when the scrubber is turned off; but "no stink" when it is turned on. I estimate my flower environment to be around 910 cubic feet.
	Quote