Filter for grow room allergens - Growroom Designs & Equipment - International Cannagraphic Magazine Forums

panckage · 01-31-2018, 06:36 AM

When I run my grow tent I get runny nose/allergy symptoms. It is not from pollen. A hepa filter on the outtake of prevents these symptoms.

I am in the process of building a box for my fan and would like to get the appropriate rated filter for this box. I have been looking at filters i can diy to this box. Any ideas what the type of filter(eg. MERV rating) would be the best compromise for this?Note that the allergy is not to pollen. I don't know what I'm allergic too so I'm unsure of what rating filter I should be looking at...

Help me! XD
.

GOT_BUD? · 02-02-2018, 04:19 PM

I would think a 5-8 MERV rating would be your best bet. You're not operating on people or trying to build an electronics clean room.

Or are you?

growingcrazy · 02-02-2018, 04:48 PM

Could you put a filter on the intake side that is in the tent?

I would find the source, first.

MJPassion · 02-02-2018, 05:25 PM

What he said!^^^

Keep in mind too that the most important aspect of air filtration is time of exposure to filtering elements. If building a home made filter, use the largest surface area you can & the slowest moving air.

Said simpler, BIGGER IS BETTER.
A simple LARGE surface area carbon filter should be placed in front of any HEPA filters.

bilko · 02-02-2018, 05:30 PM

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panckage · 02-03-2018, 11:05 PM

A carbon filter is on the fan intake. Filters in the tent intakes would be difficult as they are 2x5" holes. I would need to build places to mount these filters over the holes too and it's only a 2'x2' tent so I don't have much room to work with.... Is there a reasonablely priced and practical option here?

Ok MERV 5 to 8 sounds like a good place to start. As for the source I think it is just whatever the plants give off. Even roasting turkey in the oven gives me hay fever like symptoms. I seem to be really sensitive

GOT_BUD? · 02-04-2018, 01:21 AM

2" x 5" holes. Are they round holes or rectangular?

If they are round, could you adapt a cone filter for a car air intake?

SoulAnnoyed · 02-04-2018, 02:18 AM

Quote:

Originally Posted by GOT_BUD?

2" x 5" holes. Are they round holes or rectangular?

If they are round, could you adapt a cone filter for a car air intake?

That would be way too restrictive.

You need a huge surface area, even with Merv6,or you fan won't pull it. Like 20x20 with a 4" deep pleat..

panckage · 02-04-2018, 09:05 AM

Thanks guys. I have a hepa filter on the outtake of my fan and it works fine but could use optimization. I am planning to build a box for it to improve noise and airflow. I am just looking for the best compromises

Drop That Sound · 02-04-2018, 09:39 AM

I would just build an extra filter or 2 for the rooms you are in most.

A cheap walmart box fan($17-20), with the best 20 x 20" allergen filter you can get and tape it right to the fan.

It will outperform any of those fancy looking hepa filter\ air cleaner units on the market. Especially if you make a V with 2 filters for double the surface area. But then its a little more bulky in a triangle shape.

01-31-2018, 06:36 AM	#1
panckage Newbie Join Date: Nov 2015 Posts: 36	Filter for grow room allergens When I run my grow tent I get runny nose/allergy symptoms. It is not from pollen. A hepa filter on the outtake of prevents these symptoms. I am in the process of building a box for my fan and would like to get the appropriate rated filter for this box. I have been looking at filters i can diy to this box. Any ideas what the type of filter(eg. MERV rating) would be the best compromise for this?Note that the allergy is not to pollen. I don't know what I'm allergic too so I'm unsure of what rating filter I should be looking at... Help me! XD .
	Quote

02-02-2018, 05:30 PM	#5
bilko Member Join Date: Jan 2018 Location: above the clouds Posts: 101	- Last edited by bilko; 03-03-2018 at 08:09 AM..
	Quote

02-02-2018, 04:19 PM	#2
GOT_BUD? Member Join Date: Jul 2006 Posts: 615	I would think a 5-8 MERV rating would be your best bet. You're not operating on people or trying to build an electronics clean room. Or are you?
	Quote

02-02-2018, 04:48 PM	#3
growingcrazy Member Join Date: May 2014 Location: Michigans sunset coast Posts: 771	Could you put a filter on the intake side that is in the tent? I would find the source, first.
	Quote

02-02-2018, 05:25 PM	#4
MJPassion Observer Join Date: Dec 2012 Location: uni-verse Posts: 5,584	What he said!^^^ Keep in mind too that the most important aspect of air filtration is time of exposure to filtering elements. If building a home made filter, use the largest surface area you can & the slowest moving air. Said simpler, BIGGER IS BETTER. A simple LARGE surface area carbon filter should be placed in front of any HEPA filters.
	Quote

02-03-2018, 11:05 PM	#6
panckage Newbie Join Date: Nov 2015 Posts: 36	A carbon filter is on the fan intake. Filters in the tent intakes would be difficult as they are 2x5" holes. I would need to build places to mount these filters over the holes too and it's only a 2'x2' tent so I don't have much room to work with.... Is there a reasonablely priced and practical option here? Ok MERV 5 to 8 sounds like a good place to start. As for the source I think it is just whatever the plants give off. Even roasting turkey in the oven gives me hay fever like symptoms. I seem to be really sensitive
	Quote

02-04-2018, 01:21 AM	#7
GOT_BUD? Member Join Date: Jul 2006 Posts: 615	2" x 5" holes. Are they round holes or rectangular? If they are round, could you adapt a cone filter for a car air intake?
	Quote

02-04-2018, 09:05 AM	#9
panckage Newbie Join Date: Nov 2015 Posts: 36	Thanks guys. I have a hepa filter on the outtake of my fan and it works fine but could use optimization. I am planning to build a box for it to improve noise and airflow. I am just looking for the best compromises
	Quote

02-04-2018, 09:39 AM	#10
Drop That Sound Member Join Date: Jan 2015 Location: Services Disabled Posts: 501	I would just build an extra filter or 2 for the rooms you are in most. A cheap walmart box fan($17-20), with the best 20 x 20" allergen filter you can get and tape it right to the fan. It will outperform any of those fancy looking hepa filter\ air cleaner units on the market. Especially if you make a V with 2 filters for double the surface area. But then its a little more bulky in a triangle shape.
	Quote