The goblet with breathing valve activated carbon masks1,excellent quality(high quality 2,best service 3,The queen ofquality

After electrostaticfilter layer processing,filtering rate morethan 95% up to99.7%, effectivefiltration and adsorption subtleharmful industrial dust toprevent silicosis, SARS,avian flu. :metal, glass,cement, construction,mining, textile,grinding, pharmaceutical andother industries.

The goblet with breathing valveactivated carbon masks