How to clean your screens
It is imperative not to use abrasive textiles, preferring the wipe from the kit provided for this purpose.
Do not use cleaning products, only soap and water are recommended if you need to wash.
Several levels of mechanical resistance are specified in standard EN 166. This standard can be transposed to shooting sports.
They are designed to protect the wearer against the projection of particles. Reinforced strength: the lenses must withstand the impact of a steel ball weighing 43 g and measuring 22 mm in diameter, launched at a speed of 5.1 m/s. These lenses are marked "S". Low-energy impact: the lenses must withstand the impact of a steel ball weighing 0.86 g and with a diameter of 6 mm launched at 45 m/s (i.e. 162 km/h). These lenses are marked "F".
Other CE standard levels
Medium-energy impact: the test is similar to the previous one, with a speed of 120 m/s (432 km/h). The marking will be "B". High-energy impact: the test is again similar, with a speed of 190 m/s (684 km/h). For these tests, the temperature is 23°C.