Safeguard Window Screen Filter 11" Tall & 24" to 44" Wide

Safeguard Window Screen Filter 11" Tall & 24" to 44" Wide

Safeguard Window Screen Filters - Open Your Windows And Get Fresh Air Without Irritating Pollen. Finally, a window screen filter, that lets allergic people keep their windows open and enjoy pollen-free air. It's been tested at 92% efficiency in keeping out ragweed pollen. Even in inclement weather, the Safeguard Window Screen Filter provides fresh air while it also reduces outside noise. Warp-proof and rust-proof aluminum frame ventilator expands to fit your window and seals around the frame to provide a tight fit. The filter cartridge is replaceable and should be changed when it becomes discolored due to particle collection. NOTES: For severe mold allergies, keep windows closed and use a True HEPA air cleaner. Replacement Window screen filter cartridges also available. It is helpful to keep track of filter replacements for your records. 11" Tall Window Screen Filter adjusts from 24" to 44" Wide.