An electrostatic charging ring in these backpack sprayers gives spraying liquids a positive charge, so that disinfectant or insecticide will cling to surfaces for an even coating. They’re often used to treat small areas such as bathrooms, desks, tables, and lockers, because they can access hard-to-reach spaces and coat oddly shaped equipment. Sprayers run off a rechargeable battery, saving you the effort of hand-pump sprayers and the inconvenience of plugging into outlets. The spray nozzle has an adjustable droplet size; larger droplets mean a thicker coating of mist. The backpack straps are padded for comfort, and a handle lets you also carry them by hand.

All sprayers are ETL marked as meeting American performance and safety standards for electrical products. They are not for use with oil-based or flammable liquids. To operate them safely, wear electrical-protection gloves or use a grounding braid (sold separately). Energy efficiency requirements restrict sales of these sprayers to California and Canada.