This type comes with a top guard.
The shielded part is dustproof.
The shield has a brim on the top, so the shield surface does not come into direct contact with the floor and is less likely to get scratched.
It is a ratchet type, so you can adjust the position and size.
This is a special UV protection mask that can absorb all UV rays. Model number: 171AFR
Bottom guard: None
Anti-fog treatment: Yes
Shield specifications: UV rays
Material: PC (Polycarbonate)
Shield size: 200 x 350 x 2.7 mm
Weight: Approx. 400g
UV transmittance: approx. 0.01%
Wavelength: 200-400nm
