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RE: Air filters - Merv vs HEPA?

in #life • 9 years ago

I lkie your post .. And the information you add to the science for me... 👇👇👇👇

For those who don't already know, it is possible to create a DIY air filter on the cheap using a box fan + furnace filter. Is there a big difference between Merv and HEPA?

Regard

9 years ago in #life by
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