Air insect screen, fits into door or window frame and is formed by pulsating low pressure air pump, air hose and air distributor, via outlet apertures of which swirling air currents are produced

摘要

The air insert screen fits into a door or window frame and is formed by a pulsating, low pressure air pump (1), an air hose (2) and an air distributor with air outlet apertures (3), which produce swirling air currents. This has a deterrent effect on flying insects which might attempt entry into the premises so protected.