10x33x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Electrical Components Par Value (PPF) - 343umol/m²/S

Par Value (PPF) - 343umol/m²/S

Heavy Fungus Issues - 200 ml per gallon

Choose your desired CO2 parts per million (PPM) level

and automatically closes when not in use

10x33x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Electrical Components Par Value (PPF) - 343umol/m²/SNordic Pure Custom MERV 8 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