The Opti-MistTM BB 4-gallon battery-powered backpack sprayer is ideal for spot spraying or wide-area spraying where operator mobility is a must. This professional battery backpack sprayer provides a consistent, controlled mistand is compatible with many disinfectant chemicals making it perfect for covering large-scale areas quickly. The Opti-Mist BB has Lithium-ion batteries which provide up to two hours of runtime and can spray up to 12,000 square feet per tank of solution. The comfort grip handle and lock-on sprayer reduce fatigue during long spraying sessions. An in-tank filter on this battery-operated backpack sprayer helps prevent clogs by keeping the debris out of the spray hose.