Safety Glasses, Goggles & Visors EN 166

Safety glasses and visors for work

Eyes are exposed to flying fragments, dust, liquid splashes, UV rays and sun glare. The right protection depends on the risk: safety glasses for light impact, goggles for dust and liquids, a visor to protect the whole face, a dedicated filter for welding.

The standards in plain English

EN 166: general requirements for eye protectors. The marking shows the optical class (1 is best for prolonged use), mechanical strength (S increased robustness, F low-energy impact, B medium energy, A high energy) and fields of use, such as 3 for liquids, 4 for large dust particles and 5 for gas and fine dust.
EN ISO 16321: the newest international standard for eye and face protectors, which is gradually replacing EN 166.
EN 170: ultraviolet filters, typical of clear lenses.
EN 172: sun glare filters for industrial use, for outdoor workers.
EN 169: welding filters, with a shade number: the higher the number, the darker the lens.
EN 1731 for mesh visors and EN 352-1 for the ear defenders in combination kits.

How to choose

For machining, construction sites and warehouses, safety glassesare enough, including tinted or mirrored lenses for outdoor work. Where there is fine dust or chemical splash you need safety goggles, which seal against the face. For grinding, brush cutting or a significant risk of projectiles choose protective visors; for gas welding and brazing, welding glasses and masks.

Comfort, care and stock

Uncomfortable or fogged glasses get taken off: that is why lenses with anti-scratch (K) and anti-fog (N) coatings help keep them on for the whole shift. Prescription spectacle wearers can choose goggles that fit over their own glasses: check the compatibility stated on the product page. Trial several models with the team before standardising. With safety glasses accessoriessuch as cords, cases and cleaning stations, glasses last longer. Each product page shows the standards and availability in Milan or in the European warehouse; to equip a whole department you can request a quote.

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Domande frequenti

What is the difference between safety glasses and safety goggles?

Safety glasses mainly protect against frontal and side impact from fragments. Goggles seal against the face and also protect against dust, gas or liquid splashes, according to the fields of use marked.

What do the letters F, B and A mean on safety eyewear?

They indicate impact resistance to EN 166: F low energy, B medium energy, A high energy. Spectacles reach level F, level B is possible only with goggles and visors, and level A only with visors.

What is the EN ISO 16321 standard?

It is the newest international standard for eye and face protectors and is gradually replacing EN 166. Each product page states the standard the product is certified to.

Are ordinary sunglasses suitable for outdoor work?

No, professional use requires safety glasses with an EN 172 sun filter, which combine glare protection with mechanical strength.

How often should safety glasses be replaced?

When the lenses are scratched, cloudy or damaged, or after an impact, because visibility and strength are no longer guaranteed. Cleaning them and storing them in a case extends their life.

Can I order safety glasses in bulk for my company?

Yes, for large quantities you can request a quote from the website. Items in stock in Milan are dispatched within 24/48 working hours and shipping is free on orders over 150 € + VAT.