12x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 1 Pack commercial-lighting-fixture Plug in the USB microscope

Plug in the USB microscope and open the application ''Photo Booth'' In the top menu bar select camera then select USB microscope

No Fillers are used

Spray the tops and bottoms of the plants for best effect

For highly sensitive and specialty crops

12x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 1 Pack commercial-lighting-fixture Plug in the USB microscopeNordic Pure 12x24x4 MERV 12 Pleated Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer. This results in less flow restriction and 33% more surface area for cleaner smelling air. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon