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#296961 - 09/12/20 07:33 PM Improvised smoke filter
AKSAR Online   content
Old Hand

Registered: 08/31/11
Posts: 1198
Loc: Alaska
A member of my extended clan who lives in the currently smoke choked Pacific Northwest found a good article on how to improvise a filter to remove smoke from the air in your house.

She built one, and reports that it really does help. Running it in her bedroom, she was able to get a decent night's sleep. When she came downstairs in the morning to the rest of the house (where the filter had not been running) she immediately had a cough and watering eyes. Sitting in front of it while working from home provided relief.

Better Box Fan Air Purifier
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#296963 - 09/12/20 10:09 PM Re: Improvised smoke filter [Re: AKSAR]
Phaedrus Offline
Carpal Tunnel

Registered: 04/28/10
Posts: 2723
Loc: Big Sky Country
Great idea! I'm filing it away for later use. Right now the air is fine here but it looks like a good measure for smoke and allergens.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman

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#296967 - 09/12/20 11:40 PM Re: Improvised smoke filter [Re: AKSAR]
dougwalkabout Offline
Crazy Canuck
Carpal Tunnel

Registered: 02/03/07
Posts: 2906
Loc: Alberta, Canada
Excellent. Heavy fire smoke is almost like being under siege. I've tried it with one filter in the past but the fan was not happy. This is much better.

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#296968 - 09/13/20 01:25 AM Re: Improvised smoke filter [Re: dougwalkabout]
brandtb Offline
Enthusiast

Registered: 11/26/04
Posts: 378
Loc: S.E. Pennsylvania
Does the fan push air into the box or pull it out?
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#296969 - 09/13/20 01:43 AM Re: Improvised smoke filter [Re: AKSAR]
Phaedrus Offline
Carpal Tunnel

Registered: 04/28/10
Posts: 2723
Loc: Big Sky Country
I would think the best way would be to pull it through but I'm not 100% on that.
_________________________
“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman

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#296970 - 09/13/20 01:56 AM Re: Improvised smoke filter [Re: AKSAR]
DaveL Offline
Journeyman

Registered: 10/03/18
Posts: 59
Loc: Colorado Springs,CO
If your home has forced air furnace, Air conditioning depending on the age of the system,a duct that brings in fresh air from the outside is connected to the return air duct work.
This will allow smoke and fine ash in to the residence. You can tape plastic over the outside screen . Make sure to remove this obstruction when the the situation has passed .

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#296972 - 09/13/20 05:59 AM Re: Improvised smoke filter [Re: AKSAR]
dougwalkabout Offline
Crazy Canuck
Carpal Tunnel

Registered: 02/03/07
Posts: 2906
Loc: Alberta, Canada
Furnace filters are designed for pull-through air. Good ones are directional -- there is an indicator printed right on them.

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#296973 - 09/13/20 07:08 AM Re: Improvised smoke filter [Re: AKSAR]
Phaedrus Offline
Carpal Tunnel

Registered: 04/28/10
Posts: 2723
Loc: Big Sky Country
Thanks, Doug! I thought so but wasn't sure.
_________________________
“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman

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