Replacement Speedglas welding helmet FX-air system (without welding filter) Comes with 3M™ Adflo™ Powered Air Respirator Fits with 3M™ Speedglas™ Welding Filter Series 9100 (passive or auto-darkening), to be ordered separately Side windows (shade 5) can help widen the field of vision 3M™ Adflo™ Powered Air Respirator helps protect you against both particles and gases in one system Nominal Protection Factor 500 (TH3) Gas filters and odour filters are sold separately. The slim profile and ergonomic design make it lightweight and suitable for tight welding spaces When using 3M™ Adflo™ Respirator with gas filter configuration we recommend using 3M™ Breathing Tube with Silencer, 834009, and 3M™ Heavy-Duty Battery, 837631 3M™ Speedglas™ Welding Helmet 9100 FX-Air (without welding filter), 547700 offers eye, face and respiratory protection. Our welding helmet comes with 3M™ Adflo™ Powered Air Respirator and a flip-up welding filter combined with a big (170 mm x 100 mm), clear protective visor. For use with 3M™ Speedglas™ Welding Filter Series 9100 (sold separately). For respiratory protection and excellent vision in a flip-up model, get 3M™ Speedglas™ Welding Helmet 9100 FX Air system with 3M™ Adflo™ Powered Air Respirator (without welding filter), 547700. Our welding helmet fits with 3M™ Speedglas™ Welding Filter Series 9100 (passive or auto-darkening), to be ordered separately. The helmet has a flip-up welding filter solution with a wide, clear 170 mm x 100 mm protective visor beneath that’s excellent for precision grinding in low-light conditions. The shade 5 side windows provide users with better peripheral vision so they can be more aware of their surroundings. 3M™ Adflo™ Powered Air Respirator comes with self-adjusting QRS breathing tube, prefilter, spark arrestor, particle filter, standard battery and charger. Filters for gas protection or odour filtration can be added as needed (sold separately). Each filter can be replaced selectively without changing all filters at the same time. The slim profile and ergonomic design make it even more lightweight and easier to get into tight welding spaces. When using the Adflo™ respirator with gas filter we recommend using the breathing tube with silencer (834009) and the heavy-duty battery (837631).