
buy set of 5 colour (black ,darkblue, winered, grey,pink ), get 10 pieces of PM2.5 filter as gift.
Mask Material: Cotton
Uses: Windproof, dustproof, anti-smog, non-medical mask
PM2.5 filter: 5 layers of activated carbon protection, anti-fog and dust-proof
Meltblown disposable mask gasket