Allegro’s new NIOSH-approved disposable high-pressure supplied air hood features one-piece design with the downtube completely integrated, protecting workers from chemical and airborne particulates. Constructed of poly-coated Tyvek, the U.S. Army ECBC-tested hood allows for maintenance-free one-time use, and is engineered without a head harness for comfort and freedom of movement.Allegro Industries, Garden Grove, CA.