18x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack Environmental Controllers The Active Air CO2 Test

The Active Air CO2 Test Kit is an inexpensive alternative to costly electronic monitors

T Loose Premium Coco Fiber is a special blend of coir that is buffered

Our Classic style clip-on has spring-loaded rubber-coated metal clips that gently hold to your eyewear

Electrifying

8 oz Extreme Serene

18x24x 1/2 Half Inch Ring Panel MERV 10 Furnace Air Filters 12 Pack Environmental Controllers The Active Air CO2 TestNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in