The FORTRESS Ultra Quiet 1 Gal Air Compressor is a powerful corded electric tool with a maximum working pressure of 135 Psi. With a pump-up time of 61 seconds at 0-120 PSI and 82 seconds at 0-135 PSI, this portable compressor is designed for efficiency. The oil-free lubrication type ensures low maintenance, while the steel tank material makes it durable. The quiet operation with a sound rating of 57 dBA and CSA, ETL certification makes it a reliable choice for home and workshop use. Made in the United States, this air compressor is a 0.5 hp beast that runs on 120V with a 1 gallon tank capacity.