You will find that the M

69 ounces when using three AAA alkaline batteries

Enhanced Functionality: It includes underarm zippers for additional ventilation on warmer days and hook and loop storm cuffs to keep the elements out

Patriotic Center Seal: Full-color hard enamel American flag medallion inscribed "To Protect and Serve" with decorative stars

Honeywell 7600 / 5400 series full mask 760008AS Heckler & Koch USP-45 You will find that theHoneywell 7600 5400 series full mask 760008AS 7600 series is made of 100% silicone which offers better comfort, fitness and safety compared with 7700 half mask. If you need a respirator offering higher protection level than 7700 then 7600 full mask is your optimum choice.