Dry out pleated HEPA filter

Jul 28, 2019 7 Replies

I cleaned a pleated HEPA filter for my vacuum cleaner.



I want to dry it out.



I ran 70% IPA thru it to draw out the moisture, but it still has some residual moisture in it after 2 days.



Any other ideas to try?



Would putting it in the fridge for maybe a week help since the fridge does a good job of drying out food. :-)



Thanks, Andy


Rinse it out with a cup of Everclear and let it air dry.

Some are totally ruined by water washing. They "deform" and basically permanently plug up. I've had the same problem with a simple automotive air filter. Wash the dust out, dry it - even using a hair drier - and NO air gets through it afterwards.

Thanks so much.

You got me to thinking. I blew through the filter and hardly any air came out the other side.

My Hoover Windtunnel does work without it being installed.

I guess it just cleans the exhaust air coming out into the room ??

Andy

yes - but they are relatively cheap and SHOULD be replaced.

from HOOVER:

A washable HEPA filter should be cleaned by rinsing it under cold water. ... A HEPA filter marketed as “permanent” should be cleaned by gently using a vacuum cleaner to suck away dust and debris from the surface of the filter. Water should not be used on these types of filters

Alcohol sucks in moisture. I would, set it in the sun, or run it in spurts in vacuum to clear openings.

Greg

If it is not a "washable" HEPA filter no amount of drying or sucking will restore it. it is FUBAR. If it says "permanent" it is NOT WASHABLE - water destroys it PERMANENTLY

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