The glasses have a very high value of the lens hardness factor - F for airsoft conditions. It expresses the mechanical resistance of the material. In this case, we are dealing with resistance to so-called low-energy impacts. The lenses are designed to withstand the impact of a steel ball with a diameter of 6 mm and a mass of 0.86 g moving at a speed of 45 m/s. In conversion.

The optical class of lenses is determined based on their optical parameters. Eye and face protection is divided into 3 classes. Lenses in optical class 1 are intended for continuous use (so these glasses can also be used as sunglasses or everyday protective glasses), while lenses in class 3 are for short-term use.

What is EN166?

EN166 is applicable to all types of personal eye protection used for protection against various hazards which may be encountered in industry, laboratories, school buildings, DIY, etc., where damage to the eye or visual impairment may occur, with the exception of radiation of nuclear origin, X-rays, laser emissions and infrared (IR) radiation emitted by low temperature sources. The specifications of this standard do not apply to eye protection where separate and complete standards exist, such as laser eye protection, sunglasses for general use, etc., provided that those standards refer to this standard. Eye protection incorporating corrective lenses are not excluded from the scope of application. The tolerances for focusing power and other characteristics which are interdependent with the corrective measures are specified in ISO/DIS8980-1 and ISO/DIS8980-2.

ATTENTION!

The above product is a top quality product and has undergone durability tests appropriate for its resistance class. The manufacturer guarantees resistance to impacts of solid bodies within the resistance class or certificates obtained. Nevertheless, in the event of inadequate fit of the product, the use of this protection does not exclude the possibility of bodily injury, for example by a ball falling under the protective glass as a result of a ricochet. Therefore, before use, it is recommended to adjust the eye protection to the individual needs of the user. The protective properties of the product may also change as a result of improper use and maintenance of the above product, e.g. by cleaning the glass with inappropriate preparations. The seller is not liable for any bodily injury resulting from improper fit and use of the above product.