3 Layer construction: 1 ply SPP nonwoven+1 ply melt blown nonwoven +1ply SPP nonwoven Elastic ear-loop: with good elastic ear-loop, which can be adjusted its tightness; One size for most adult men or women Suitable for personal daily health protection: these masks are designed to keep away smoke, debris, residue and dusts from you Wide applications: can be applied in electronic manufacturing, dust-free workshops, catering services, food processing, schools, motorcycles, beauty, environmental cleaning, public occasions and many other uses
