Type of filter, which gives particles of dust electric charge. This causes particles to be attracted to a plate so they can be removed from air stream or atmosphere.

This is an electronic, active plate filter. Electronic filters are used in cases where air-conditioning and air purification functions need to be combined in a single device. In particular, they remov [..]

A filter that is made up of synthetic fibers that develop an electrostatic charge as friction is applied, which in vacuum cleaners, air purifiers and furnace filters is produced by air flowing across the filter. This electrostatic charge is generally effective in trapping particles 1 micron or larger making electrostatic filters capable of capturin [..]

A device in which the application of astatic electric charge to a filter improves the efficiency with which it collects small particles.