To prevent any risk of impact, chemical splashes, dust, gas or molten metal, there is a wide range of safety goggles for protection against a whole range of different risks. One of the driving factors to take into consideration is the type of ventilation of your equipment, the other one can be the raw material used. In this blog, we will explain the different types of materials in vents, straps and lenses which will help you select the right googles, for the right job.
Indirect Vented Frame
Safety goggles with indirect ventilation are suitable for a wide range of users. Indeed, it can be used by a construction worker on a construction site as well as by a metallurgy professional, where dust poses only a limited risk.
The indirect ventilation prevents liquids from going directly into the goggle and affect the eyes of the worker. The ventilation holes of the goggle frame are generally very small and placed around the top and/or sides of the goggles. Indirect vented goggles can provide protection against impact (B), liquid splashes (3), large dust particles (4) and/or molten metal (9).
Sealed safety goggles are suitable for professionals working with flammable products, dangerous gases, fine particles, and more. It can be used, for example, in the petrochemical environment or the food industry.
Check that your equipment is suitable for the chemical risk identified, the symbol 3 (liquid splashes), 4 (large dust particles), 5 (fine dust particles and gases), 9 (molten metal).
The better the sealing of your goggles, the higher the level of protection against chemical risks.
Straps are responsible for keeping the goggles securely on the user’s face. Each type of strap has its own advantages and disadvantages in terms of comfort and security. Here are some commonly used types of straps:
Safety goggles with a neoprene strap are ideal for workers who use solvents and acids, as neoprene is more resistant to chemicals than nylon. This material is also elastic, allowing for a good fit around the face, thereby preventing particles or liquids from getting under the goggles. Finally, neoprene provides some thermal insulation, which can be advantageous in environments where temperatures are extreme.
Nylon straps are lightweight, durable, and resistant to wear and tear. They are often used in rugged work environments where impact resistance is crucial. However, they may be less comfortable than neoprene straps, especially when worn for extended periods.
Silicone straps are soft, flexible, and hypoallergenic. They are ideal for individuals with allergies or sensitive skin. Moreover, silicone has excellent resistance to high temperatures, making it suitable for hot working environments.
Some goggle models come with adjustable straps, allowing users to customize the length of the arms for a personalized fit. This ensures optimal comfort and increased security, as the goggles stay in place more reliably.
In addition to ventilations and straps, the choice of lens materials is a key factor in the manufacturing of eye protection goggles. Materials influence impact resistance, durability, comfort, and optical clarity of the lenses. Here are some commonly used materials:
Polycarbonate is one of the most popular materials for goggle lenses. It is lightweight, impact-resistant, and offers excellent optical clarity. Moreover, polycarbonate can be treated to resist scratches and chemicals, making it a versatile choice for various work environments.
Trivex is a material similar to polycarbonate but offers even better optical clarity. It is lightweight and impact-resistant, making it an ideal choice for those seeking clear vision and high-quality eye protection.
Plastic lenses are typically less expensive than polycarbonate or Trivex but are also less impact-resistant and more prone to scratching. They may be suitable for light-duty tasks but are not recommended in environments where robust protection is paramount.
Glass lenses have traditionally been used in safety goggles but are becoming less common due to their weight and fragility. However, they offer exceptional optical clarity and may be an option for specific applications.
Acetate generally provides better optical clarity than polycarbonate. It has fewer visual distortion effects, which can enhance vision quality and visual comfort for individuals who wear glasses. It also resists to scratches relatively well, this helps maintain clear and unaltered vision over the long term.
One must always examine the condition of your equipment carefully. If the frame or lens is distorted, damaged or has a hole, the equipment can no longer protect you effectively against the chemical risks.