Sponge Dust Masks Respirator Breathable
 
Sponge Dust Masks Respirator Breathable Features:
100% brand new and high quality
Made of sponge material, keep pollutants out while offering comfort thanks to the built-in exhalation valves and soft and stretchy elastic loops.
Lightweight material, soft texture, comfortable to wear. Comes with filter valves, smooth breathing.
Built-in exhalation valve lets air in and keeps moisture out, letting you breathe easier while keeping dust and other pollutants out.
Comfy elastic and wide ear loop lets you wear these masks for long periods of time without irritation.
It is suitable for cycling, running, biking, hiking, skiing, woodworking, and other outdoor activities.
The dustproof mask can be used for anti-dust, anti-vehicle exhaust, anti-pollen allergy, anti PM2.5, and haze day protection.
Easy to wear and they provide a superior level of protection over the paper masks, and Very comfortable for long periods of time.
Washable, can be repeatedly used. Collapsible, you can put it inside your pocket and bring it anywhere.
What is the PU sponge dust face mask effectiveness? Here are the details: https://www.pusponge.com/single-post/2020/03/04/What-is-the-PU-sponge-dust-mask-effectiveness-

Sponge Dust Masks Respirator Breathable Specification:
Material: Polyurethane PU
Size: 13x16cm(5.12x6.30in) or customized
Color: Black or customized

Note:
Transition: 1cm=10mm=0.39inch
No retail package.
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item.
 
Which mask should we choose to prevent COVID-19? Here are the details: https://www.pusponge.com/single-post/2020/04/15/Which-mask-should-we-choose-to-prevent-COVID-19