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In a lot of tests Corsi Rosenthal boxes tend to outperform most commercial offerings and they are very cheap as they are a box fan duct taped to some MERV13 fil
by PaulKeeble 2y ago
In a lot of tests Corsi Rosenthal boxes tend to outperform most commercial offerings and they are very cheap as they are a box fan duct taped to some MERV13 filters. Effectiveness is a lot about air exchanges an hour.
- amanaplanacanal 2y agoI have one of these set up on each floor of my two story house to cut down on particulates from dust, pets, and cooking. If they also help protect from disease that’s just icing in the cake.
- djmips 2y agoBox fans are noisy and in my experience fail early when running constantly. When their bearings fail they can atomize the grease.