11x32_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tents & Tarps Can I leave this running

Can I leave this running unattended

Can be used to calculate the exact amount of light needed based on the PPFD to enhance growth rates and to save energy

The Actual Size listed above is the exact size of the metal frame

Non-slip base

Varia has a hole-like structure

11x32_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tents & Tarps Can I leave this runningNordic Pure Custom MERV 14 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