Here’s the blurb for you:
“This removable electrostatic air filter for windows is a Class 1 registered Medical Device designed to permit asthma and hayfever sufferers to sleep with their windows open allowing a free passage of air.Very effective against traffic fumes and mould spores and prevents biting or stinging insects entering the room.
The hotter the night, the higher the pollen count and the greater the need to have cool air filtered through your window. Window-filta fits neatly to your open window and traps pollen, fungal spores, floating seeds, diesel particulates, dust and insects, letting only fresh air in.
Each Window-filta will fit a window up to 120x60cm or can be cut to fit smaller openings. Fits 30cm hinged toplights when cut in half.
captures and holds 99.9% of airborne particles down to 0.3micron
simple and effective
easy to fit with Velcro dots – full instructions supplied
protection at home or office
inexpensive, lasts all season“
Have a look – on special offer too at the moment.