Features:

1.inner layer is made of softpolypropylene(pp),which reduces the fiber drops and  increases  the wearing comfor.

2.the filter layer is made of high effcient melt blown web, which resists and oil-free particle.

3.adjustable nosepiece provides a custom seal for different facial size

ol latex-free head strap for comfortable wearing

5.exhalation valve reduces hot air buildup and easy breath in hot/humid environments.it suitable to long time wearing comfort.

6.effciently resist nuisance or arganic acid vapors,suited to chemical agriculture,solution cleaning,spray,printing ,electronic,food processing,auto body shop,ship building,ink and dyeing,sterilizing,and so on.