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Answer: Fogging on lens happens while working in some applications due to moisture. It will affect our vision. For such applications, anti-fog coated lens should be used.

Answer: Polycarbonate lens get scratched due to its physical property and the working conditions where we use it. So, to minimize scratches, a chemical coating is done. This is called hard coating.

Answer: The indoor/outdoor spectacle with a slight tinted coating makes the user comfortable both in the outdoor and indoor light. So that is the most suitable spectacle for your work. 

Answer: No. Amber lens enhances the vision by blocking some colors in the present light. It cannot be used in absence of light.

Answer: Safety spectacles with smoked lens are suitable for working outdoor and in high light conditions. They should not be used for welding.

Answer: Welding spectacles are suitable to be used by the helpers and supervisors. Direct welders should use welding shields and helmets.

Answer: No. There are different IR filter shades. The wavelength of IR emitted from different types of welding works varies. We should select the suitable filter. Generally IR 5 shade suits all gas welding types and IR 11 suits arc welding types.

Answer: For welding work, welding shield with proper IR filter is the suitable solution.

Answer: Though Polycarbonate has a good resistance over many chemicals, acetate lens has a higher resistance compared to other lens materials

Answer: No. Chemical splash goggles are the suitable protection against chemicals. They cover and seal the eyes with a tight fit, so that the chemicals cannot enter.