dhl ship2020 k dustproof windproof face breathing valve sponge mask washable reusable anti-dust fog pm2.5 masks shipping f3xf

2020 k dustproof famask breathing valve sponge mask washable reusable anti-dust fog pm2.5 masks shipping h.features: material: sponge skin-friendly material makes it feel comfortable when you wear it. double filter: 2 layers thick preventing dust perfectly. its extensible and stronger is not easy to be damaged. widen elastic ear-loop: with stretchy widen ear-band for closely fit, easy to wear and off.