Double-sided anti fog, ensure clear vision always, no need to worry about the sight. Sponge in front of head to reduce friction and make sure comfortable during wearing time. 180 Degree isolation, effectively prevent spitting/saliva/dust and any other unidentified material from outside. Light weight and potable, will not feel unwell after long time wearing. Specification: Size: 32 x 22cm Material: PET + Sponge Usage Range: Suitable for use in working environments that require face protection.