The nozzle is often adjustable, from a coarse to fine spray pattern. Spray coverage is more uniform with compressed air sprayers than with dusters and hose-end sprayers. Pesticides must be diluted according to label instructions, and sprayers must be cleaned after each use. Pesticides are sold premixed, and the reservoir is connected to a plastic nozzle. The system is a closed one, with no mixing or cleaning necessary.
Pressure is applied by a trigger.
The system is adequate for small areas, but would not provide coverage to larger plantings. Sprayers mounted on garden-type tractors similar to those available for farm use can be used on larger properties. As with other sprayers, proper mixing of pesticides and thorough cleaning of the equipment after use are required.