Adding an external filter to ERV exhaust intake: worth the effort?
I read an article where it was suggested to add inline filters externally to the HRV/ERV on both the fresh air intake and the exhaust intake. I see less value doing this on the fresh air intake since units already have a filter there, but it might make sense to pick up dust, etc from the exhaust air prior to it passing through the unit to go outside. Would love to hear folks thoughts and experience with this!
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