More advanced!No odor!
More comfortable to wear !
ventilation efiect 70% increase
·New 3.0 filter-valve more advanced.
·Double-deck filter layer more safe&better.
·Widened lanyard more comfortable to wear.
·Breathble material breathe more smoothly.
·Washable material repeated use.
Instructions For Use
1.Confim the correct edges, then expand left and right.
2.Pick up both ends, hung it on the ear.
3.Gently press the mask to attach it to the cheek.
·Product Name:3D Fler-valve Mask
·Executive standard:Q/XP 001-2019