If you're an allergy sufferer, you know an open window is an open invitation to allergens in your home. Goodbye to fresh air? Not with our Safeguard Window Filter, made here in the USA. Tested at 94% efficiency in removing ragweed pollen, the adjustable polyfiber filter traps allergens while letting the clean air in and keeping rain out. Easy installation—simply place the filter into the channel of a double-hung window (½" vinyl seals top and bottom assure snug fit), then adjust filter to required width. Available in 7" and 11". Aluminum frame, molded end caps.

• Adjust to fit width of window
• Blocks rain
• Filters remove 84% of ragweed pollen
• Filter traps allergens while letting clean air pass through
• Installs in just minutes
• 11" filter expands from 24" to 44" wide
• 7" filter expands from 20" to 36" wide
• Constructed with an aluminum frame and molded end caps

Thanks to these easy-to-install filters allergy suffers can enjoy fresh air again.