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Filtered window fan? (fedia.io)

submitted 5 months ago by [email protected] to c/[email protected]

20 comments fedilink hide all child comments

I live in an area with not so great air quality and no AC. We have little air filters inside the rooms, but at night we have to let the cool (and dirty) air inside to cool down the house.
I'd like a solution to blow air in while also filtering it - but aside from one Amazon listing and makeshift solutions with zip ties, I haven't seen great options.

Any recommendations you have?

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[–] [email protected] 2 points 5 months ago (2 children)

So, filter the air after it comes in, not in the process of blowing in the window?

[–] [email protected] 4 points 5 months ago

Set it up at your window and do both.

[–] [email protected] 2 points 5 months ago (1 children)

Yes, you want to filter on the output side. Putting the filter on the input will put extra strain on the fan motor.

[–] [email protected] 2 points 5 months ago (1 children)

Why will it? Surely it should make no difference?

[–] [email protected] 2 points 5 months ago (1 children)

Filters do slow down air flow.

[–] [email protected] 3 points 5 months ago (2 children)

filters on the output side should still strain the fan motor, no?

[–] [email protected] 3 points 5 months ago

No, static pressure against a pump (which technically a fan is) is much less stressful against the motor than limiting the supply is. It's easier for the fan to push against resistance than it is to pull air through resistance.