Emergency Escape Respirators, Ammonia; Methylamine ORS NASCO Powerful aluminum WhisperJet® silencer nozzle Solid Powerful aluminum WhisperJet® silencer nozzle Solid conical tip prevents blockage of nozzle Features ergonomic Made of shock resistant and heat treated S2 steel for maximum strength and hardness Ideal for maintenance and repair work English and metric scales Extra wide capacity Hang hole for easy wall storage soft and flexible nose pads hold securely without pinching Wider nose clip fits a variety of facial types Silicone mouthpiece is more comfortable to wear over long periods Packed in sealable plastic bag (carrying bag sold separately 79BAG) Mouthbit respirators offer a quick and economical method to escape non IDLH emergency situations Large