3 ms·
What's the MRV of an oven filter? Is there another step on the ladder I'm not aware of?
by 7thaccount 3y ago
What's the MRV of an oven filter? Is there another step on the ladder I'm not aware of?
- vintermann 3y agoFrom what I've seen the indoor climate geeks do recommend prioritizing throughput over filter rating, so they'd rather use a box fan with MERV 13 filters rather than HEPA (which is ~ MERV 17 I think?).