FEATURES

• Design of double(Single) Filter pot and breather valve.
it is extremely low to breather obstruction.
• Enclose and present a soft nose cushion with cotton which can suck.
• The built-in high-efficient filter cotton can soundly filter the fine dust,
economic and substantial.
• Sweat, increase comfortableness of wearing, able to wash and change
• Nontoxic odorless, sensitivity and non-iritating to skin

SPECIFICATIONS