Size 17.5cmx9.5cm, 50/ box, 2000 / box, disposable mask is divided into a one-time three-layer mask, disposable non-woven mask, one-time four-layer mask, disposable activated carbon mask.rnOne-time three-layer mask is made of two layers of non-woven fabric and filter paper, one-time three-layer mask is specialized in medical and health fiber nonwoven fabric inside two layers, the middle adds a layer of filtering anti-bacterial up to 99% of the above filter dissolved spray by ultrasonic welding, the nose beam is environmentally friendly full plastic strip, does not contain any metal, with air transmission, comfort. Filter effect B.F.E up to 99% is particularly suitable for electronic factories, disposable activated carbon mask is 28 grams of nonwoven fabric with the surface layer, the middle layer is filtered with anti-bacterial filter paper up to 99% to play a role in anti-bacterial, to prevent virus hazards, the middle second layer is made with new high-efficiency adsorption, filter material - active carbon fiber, activated carbon cloth, with toxic, anti-odor, filter, and other effects;rnDisposable mask in the production is the use of environmental protection of all-plastic nose strip nose clip design can be based on different face type to do the most comfortable adjustment. Choose the inner ultrasonic spot welding, ear straps can be very strong and not easy to drop.rnDisposable masks can be applied to electronic manufacturing, dust-free workshop, catering services, food processing, schools, riding locomotives, spraying processing, stamping hardware, electroplating, chemical, steel, welding, health hospitals, hand processing industry, hospitals, beauty, pharmaceutical, factory, environmental cleaning, public places and other uses of the use of methods: elastic ear hook hanging on both ears, with full nose type, light pressure fixed film, make the face and face. Product main technical indicators: carbon pentachloride adsorption rate: s70% benzene adsorption rate: 15% resistance: 80% area weight: 35 to 45g/m2