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Spectacle & Eye care

Spectacle & Eye care

Answer: No. The safety spectacles should never be washed with water as the chemical coatings will get spoiled.
Answer: There are many certifying bodies to test and certify the safety spectacles. The popular certifications in Vietnam are the AS/NZS, ANSI and EN certifications. The respective markings will be embossed on the spectacle permanently.
Answer: The life of a safety spectacle is not fixed and it varies according to the usage and maintenance. The working conditions also affect the life of the spectacle.
Answer: The goggles give a complete sealing by tight fit and hence the user gets sweat soon. Also this sweating creates moisture that disturbs the vision. So, the goggles are provided with indirect ventilation holes for the comfort of the user and clear vision.
Answer: Yes. The dust gets accumulated on the lens due to the difference in charge between the lens and dust particles. Anti-static lens prevents development of charge and minimizes accumulation of dust over the lens.
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. 
Answer: There are certain models of safety spectacles that are compatible to be used over the prescription glass.
Answer: Yes. Normal prescription glasses do not have the impact resistance, physical design and UV protection which are needed in the workplaces. So, do not provide the needed protection.
Answer: A spectacle generally has a lens mounted on a frame with side arms and it covers the maximum of the area around our eyes while in a goggle, the lens is mounted on shroud and it completely seals the area around eyes. Goggles generally have headbands for better fit.
Answer: No. There are various models of safety spectacles, goggles and face shields designed and manufactured according to the need of different hazards. We have to select the suitable one and use.
Answer: In industries and other working conditions, there are hazards like dust particles, metal chips, chemicals and radiations according the process carried out. To protect us from these hazards, we need proper safety equipment.
Answer: No. Safety spectacles with smoke lens do not provide protection from ultraviolet radiation and flying objects.