3M S-100 Series Powered Air Purifying Respirator Headcovers are available with different suspension and size options.3M Versaflo S-100 Series Integrated Suspension Head Cover has integrated head suspension for full head and face coverage, as well as, limited eye and face protection. Our head cover is a cost-effective headcover that can be used with 3M Powered Air Purifying Respirators and Supplied Air Respirator Systems in a wide variety of applications.