Introduction

●	Anti-dust poison free switching, dealing with complex conditions
●	TPE composite material, comfortable,soft,good oil resistance, suitable for long-term wear
●	Exhalation valve protection, not easy to pollute, easy to disassemble and wash
●	Humanized headband design, can be combined with the helmet to wear, convenient and fast
●	Double box design, lower breathing resistance, longer service life
●	Universal interface: compatible with SATA FH07 series filter box