An indirect ventilated goggle ideal to be used with power tools particularly angle grinders & high powered drills These goggles will withstand medium energy high speed impacts up to 120ms 270mph Large size indirect ventilation Protection from liquid droplets or splashes large dust particles & molten metals Can be worn over spectacles Conforms to EN1661B 349 Soft vinyl flanges around the goggles ensure comfort & conformity to facial contour Tough polycarbonate clear antimist UV resistant lens