They offer the best protection from impact and splashes, but they fog up quickly. They don’t have any slits, but are one solid piece. Indirect vent goggles also have multiple slits in them, but those slits are covered, allowing them to fog more frequently. These are best used for impact protection. Types of Safety Goggles:ĭirect vent goggles have multiple slits in them to allow air to move behind the lenses and prevent fogging. Glass doesn’t distort what you’re looking at and can be protected against scratches, but these glasses are heavy and don’t do very well with any direct impact. Trivex is super-lightweight and has top-notch visibility, but is expensive.Īcrylic is lighter than glass, scratch-resistant, and less expensive, but it doesn’t offer very clear sight and isn’t very durable. Polycarbonate glasses are lightweight and protect against UV rays, but aren’t as clear as other materials.
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