There is a Kasco Air Pure Safety Helmet designed to provide respiratory protection when working in dusty conditions (the Apollo) and one designed for protection when spraying pesticides or herbicides (the PROF 88). The Apollo comes with flip-up visor, blower/fan unit, and two dust filters inside the helmet; 4-hour battery, battery belt, and cable, plus battery charger. With the optional 'cigarette lighter' socket and cable, it can be run continuously off the tractor's 12-volt system. The PROF 88, with the fan blower, batteries, and filter all built into the helmet, allows freedom of movement in fields or tight working areas. It too can run 4 hours on a single battery charge or continuously from the tractor via 'cigarette lighter' socket and cable.