HIGH CAPACITY: Best used in spaces up to 500 sq ft, the 1,000mg/h ozone output can run up to 4 hours on a full charge to remove tough odors and harmful particles in small areas like your car, office, bathroom, pet room, and more. COMPLETELY PORTABLE: Cordless and battery powered, the PA1K-GO makes it easy to use in your vehicle or to disinfect hotel rooms, towels, sheets, clothing or luggage while traveling.