QuietCool Clean Air Window Screen - MERV 5 Rated - Window Nano-mesh Filter Screen to Reduce Dust, Pollen and Allergens - Easy DIY Installation - 48 x 96 inch

Helps block dust, pollen, allergens, and more from entering your home MERV 5 Rated and ASHRAE 52.2 Tested Blocks above 90% of average allergy producing pollen particles Filters out up to 70% of PM10 Particles and up to 40% of PM2.5 Particles 3 Layer Construction for Durability High Visibility and Air Transfer Helps block heat and UV rays Easy installation with the proper tools and spline (sold separately) Install with a QuietCool whole house fan for the most improved indoor air quality 8 foot roll - 48" wide