Thread: Use of Antimicrobial chemicals in air filters - is it safe?
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dantheman dantheman is offline
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Default Use of Antimicrobial chemicals in air filters - is it safe?

Noon-Air wrote:
Instead of paying the $$$ for the 3M brand name filters, use a generic or
off brand MERV 8 or 9 pleated filter, and change it every month.

The US HVAC professional organization (forget its actual name)
recommends MERV 13 or higher. I've seen some MERV 11 around here for a
good price. 3M doesn't use MERV ratings but apparently the "1250"
rated ones are MERV 11...

Peace, Dan

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