The 3M Versaflo S-433 Headtop for Powered and Supplied Air Respirators. Headcover providing head, face, neck and shoulder coverage. Integrated head suspension. Provides eye and face protection from liquid splash and low energy impact (grade F). Constructed using high grade, durable low-linting soft touch fabric. Excellent overall comfort. Excellent all-round field of vision. Ready to use with no assembly required.