For allergy sufferers, open windows bring fresh air but also pollen and dust. A window filter lets you keep the fresh air while blocking the misery-causing pollen.
Window screens for double-hung windows that filter out pollen and dust are available from several online suppliers (search for “window air filter screen”). These filter can keep out almost all dust and ragweed pollen. The drawback is that unlike a conventional insect screen, they won’t let breezes blow through the open window.
To install the screen, just open the window and put it in the opening as shown. You can buy the screens online or at some home centers. The filters are replaceable.
You can leave the screen in year round, but you’ll only need it when pollen is aggravating your allergies. Pollinating grasses, such as orchard and Bermuda, grow in the late spring and early summer. Ragweed, which causes most “hay fever,” is prevalent in the late summer and fall.
If pollen is still a problem, put an air cleaner (also called an air purifier) in your bedroom. The units work by circulating air and filtering out airborne particles such as pollens. Choose a unit that’s made to clean a bedroom of your size or a larger room. Be aware that while some air cleaners have tested well at filtering out pollens, others have not. Research air cleaners in consumer magazines before buying one.
Other strategies for reducing pollen: