DescriptionThis mask is suitable for steel heat treatment, boiler ash, electroplating polishing, grinding wheel grinding, etc. It can prevent damage caused by splashing of harmful substances such as acid, alkali, oil, chemical liquid, metal solution, iron filings or glass fragments.Features- Color: As Shown. - Material: Plastic. - Size: 5.1 x 5.8 x 5.8 cm. - The product is ergonomic, convenient and safe. - Made of material, protect your health perfectly. Durable and long service life. - Suitable for steel heat treatment, boiler ash, electroplating polishing, grinding wheel grinding use. - Professional designed for industrial use, it can prevent damage caused by splashing of harmful substances such as acid, alkali, oil, chemical liquid, metal solution, iron filings or glass fragments. -The shielding box absorbs the radiation caused by the radiant heat generated by the a-ray and low-energy b-rays to protect the user's face.