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Increase humidity by moistening soil or use a cool-mist vaporizer around plants in enclosed areas
Rated at a conservative 0
For soil use:
It is a passive hydroponics system based on the research of academic horticulturist B
11_1/2x11_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights Increase humidity by moistening soilNordic 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
