How to choose the right pair of glasses according to your activity? Here is a review of the different protections offered:

THERMAL RISK

Thermal risk occurs during the projection of liquids, hot solids, or the emission of intense radiation. Bollé Safety has developed protective glasses against thermal risks that comply with current standards.

Concrete examples: Radiant heat from furnaces, projection of molten metals or hot solids... Thermal risk is defined as: projections of hot liquids, intense thermal radiation.

MECHANICAL RISK

Mechanical risk manifests, in most cases, during machining operations where sharp particles or particles with significant kinetic energy are projected. Against mechanical risks, Bollé Safety has developed a wide range of protective glasses: branch glasses, mask glasses, face shields...

Concrete examples: Metal chips, projections of splinters or particles from tools... Mechanical risk is defined as: impacts, projections of splinters or solid particles.

To choose between branch glasses, mask glasses, and face shields, it is necessary to know the nature and importance of the risk:

• for a turning operation, branch glasses may suffice.

• for a cutting operation, the use of a face shield is essential to protect the eyes and face.

RISK RELATED TO OPTICAL RADIATION

Optical radiation manifests in many activities in industrial, medical, or commercial environments. Welding processes, steelworks, surgery... are concerned. Overexposure of the eyes to high-intensity sources can cause burns and eye injuries. Bollé Safety has developed protective glasses, mask glasses, face shields, and welding masks to combat optical radiation.

Concrete examples: Invisible UV radiation, visible radiation, and invisible IR radiation... Radiation risk is defined as: ultraviolet, infrared, visible light, gas welding, electric welding, laser.

CHEMICAL RISK

Chemical risk appears when a substance projected or present in the ambient environment reacts with the components of the eye or skin and manifests in most industrial sectors. Chemical risk is present, notably, in the medical field, the food industry, or the waste management sector, where microorganisms are likely to contaminate the individual. To eliminate any risk of chemical substance projection, Bollé Safety offers a wide range of protective mask glasses against chemical and biological risks.

Concrete examples: Dust, aerosols, liquids, gases, or vapors... Chemical risk is defined as: projections of dangerous liquids, toxic dust, gases, toxic vapors.

ELECTRICAL RISK

Eye protectors against short-circuit arcs must only be face shields. They should not expose any bare metal parts, and all outer edges of the protector should be rounded, chamfered, or otherwise treated to present no sharp edges. The consequences of an electric shock can be corneal burns, retinal injuries, and conjunctivitis.

Concrete examples: Arc flash, electrical flashes...

BRIEF EXPLANATION ON WAVELENGTHS

Wavelengths are the basis of our perception of the world... two organs allow us to receive them: the eyes for light and the ears for sound.

Gamma rays: very dangerous, can penetrate cement and even lead. They destroy the cells of living organisms. X-rays: they penetrate the tissues of our body but are stopped by bones, allowing radiographs. Ultraviolet rays: from the sun, they are partly stopped by the ozone layer surrounding the earth. Those that manage to pass bring joy to tanning enthusiasts but are harmful in high doses. Infrared rays: are emitted by all hot bodies. They are not visible, but their heat is perceptible. Radio waves: are used to transmit sounds, images, or digital data. The human eye cannot discern the different components of radiation and only perceives their resultant. The human eye can only see radiation with a wavelength between 380 and 780 nanometers, which is the "visible spectrum."