Yamaho’s innovative electrostatic backpack sprayer provides portability in a powerful pack. Spray GlanHealth’s gentle, yet powerful cleaning products with ease with the help of this effective mobile solution. Electrostatics is the process of adding an electrical charge to the liquid droplets when they are sprayed. Electrostatic Backpack Sanitizer Sprayers treat hidden and hard-to-reach spaces while covering large areas in a small amount of time. Double-charged particles envelope all conductive surfaces – shadowed, vertical and underneath.