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• The exhaust valve allows continuous mounting for a long time.
• The mask cup maintains the shape of the mask by preventing it from getting out of shape even under high temperatures and humidity.　Reduces the frequency of mask replacements and reduces costs.
• Do not use for asbestos.
• [N 99] High performance particulate dust mask
• Neck/back of head type
• Comes with an exhaust valve to prevent hot moist air from accumulating in the mask for cool work with low resistance to breathing
• Soft foam nose cushion for better comfort
• Nose bridge that fits the shape of the nose seals snugly without a metal band
• 100% PVC free
• Can be used for most welding operations with high temperature and flame resistance as specified by ANSI/ISEA