MERV-13 Filters are designed to offer added protection from dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm).
Original foam / polyester filters are removed. MERV-13 filters are then installed in both the inlet and outlet sides of your air exchanger.
For units which have been previously balanced with the foam or polyester standard filters, two MERV-13 filters are highly recommended to keep the balance.
 Brand
Compatible Model
Lifebreath
METRO 120 HRV
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