1.low breathing resistancewith high filtration efficiency

2.polylenematerial without any toxic, irritating, stimulant, poison

3.Adjustable nosepiece and inner foam provide a custom seal for different facial

4.Elastic headbands ensure snug fit and minimize coverage slippage

5. Easy-breathing exhalation valve with silicon piece inside designed to facilitate
air exchange, increase worker comfort.

6.It is widely used in medical-health departments, food industry and personal health, particularly for cement factories, food powder factories and textile factories for personal protection against air pollution