9x13x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack drying-racks and breaks down the chemistry

and breaks down the chemistry of the chemical compound while actively capturing dust

When mounted to 5-MSP pump

Attention to safety must be present with this solvent - because it is also highly flammable

The yellow LED indicator shows CO2 level equal or above 800ppm which means supplemental CO2 is in use

9x13x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack drying-racks and breaks down the chemistryNordic Pure Custom MERV 13 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition