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RE: Merv Air Filters
While Merv 13 is overkill, there is some very common hazards that get filtered around Merv 8 and 11. The cheaper filter fibers have so many gaps they virtually do nothing.
While Merv 13 is overkill, there is some very common hazards that get filtered around Merv 8 and 11. The cheaper filter fibers have so many gaps they virtually do nothing.