The Bullard Electric Free-Air pumps supply continuous flow air to a hood, hard shell respirator or tightfitting masks. Ideal for supplying clean, breathable air on a job site or when a compressed air system is not available. Delivering air up to 300-ft away from the pump, the Bullard Electric Free-Air pumps are of an oil-less design and don't produce carbon monoxide (CO), oil vapor or oil mist. Continuous airflow supplies air for one hood or one full facemask airline respirator. Weighing only 49 lbs., this pump can be easily transported from one job site to another. Meets UL requirements and CSA approved. When placed in a clean air environment, Bullard Free-Air pumps offer a low-cost means of supplying clean, breathable air to respirator wearers working in contaminated environments up to 300 feet away from the pump. They are easy to operate and maintain. Free-Air pumps do not require temperature alarms, CO monitors or airline filters, so they can be a cost-effective alternative to compressed air.