Compact and lightweight, the Sundstrm SR 700 powered respirator is easy to carry around and is designed to protect workers from hazardous dust and toxic particles. This kit contains the SR 700 power unit, plus a battery, a charger, particulate filters and a pack of pre-filters to help lengthen the lifespan of the filters. Along with this starter kit, you will need to select a respirator hood or face shield that is most appropriate for your application.