Has anyone tested charcoal furnace filters to see if they have an appreciable benefit in indoor air quality?
In commercial settings charcoal filters have been used for years to help eliminate odors and harmful gas particles. While I don't understand the science behind them, charcoal filters attract small gas molecules that would otherwise pass through even a Hepa filter.
I don't know how effective the furnace filters would be, as they can't be overly thick, but I would presume it might work to capture some of the off-gassing polutants? Cartridge style respirators use a rather thin filter and are effective, so who knows. Also, if the charcoal filters are effective, how do you know when they should be changed?
Posted Mon, 04/28/2014 - 07:55
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