28x30x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack harvest-solution Relative humidity range: 0%-100% RH

Relative humidity range: 0%-100% RH

and reflective material on the interior side

- Applying to seedlings before planting and watch them grow into healthy

Heavy metal

28x30x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack harvest-solution Relative humidity range: 0%-100% RHNordic Pure 28x30x4 Pleated Air Filters MERV 14 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, smoke particles, smog, allergens, virus carriers, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured