window cleaners using a brush on a carbon fiber/fiberglass telescopic pole to clean windows. These are known either as Pure Water, or a Water Fed Pole System (WFP).
Water is passed through a series of filters to remove all impurities, leaving it completely pure with no bits in. The pure water is then pumped up a Lanbao carbon fiber telescopic pole to a 12inch brush. The brush agitates the dirt and the purified water rinses it away. Any water left on the window dries completely clear to leave a smear-free finish.
Post time: Dec-22-2021