3M 6500 Series Half Mask Respirator 6501QL 6502QL 6503QL utilities and you’re open to switching H31A Style:Full Brim (HDFM-17KG) no batteries required K3118-1

and you’re open to switching cartridge systems

For raising or lowering personnel — such as confined-space entry — use a purpose-built retrieval SRL or winch system

The DEWALT line tops out with two polarized frames: this DPG109 is the premium half-frame with a brow guard for overhead exposure

E-A-Rsoft SuperFit 311-1254 vs E-A-R Classic 311-1110: E-A-R Classic 311-1110 is NRR 29 (single-use foam)

or combustible dusts at concentrations that can be ignited by electrical sparks

3M 6500 Series Half Mask Respirator 6501QL 6502QL 6503QL utilities and you’re open to switching H31A Style:Full Brim (HDFM 17KG) no batteries required K3118 1 and you’re open to switching cartridge systems For raising or lowering personnel — such as confined space entry — use a purpose built retrieval SRL or winch system