Safety Goggles
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650৳
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Steadfast courier will deliver to the specified address
Inside Dhaka - (24hours) - 80 TK, Outside Dhaka -(48hours) - 135 TK
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Sundarban courier will deliver to the specified address
Inside Dhaka - (24hours) - 80 TK, Outside Dhaka - (2-3 Days) - 150 TK
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Description
- Cold weather: Most modern cold-weather goggles have two layers of lens to prevent the interior from becoming “foggy”. With only a single lens, the interior water vaporcondenses onto the lens because the lens is colder than the vapor, although anti-fog agents can be used. The reasoning behind the dual layer lens is that the inner lens will be warm while the outer lens will be cold. As long as the temperature of the inner lens is close to that of the interior water vapor, the vapor should not condense. However, if water vapor gets between the layers of the lens, condensation can occur between the lenses and is almost impossible to get rid of; thus, properly constructed and maintained dual layer lenses should be airtight to prevent water vapor from entering between the lenses.
