How can I prevent eye protection misting up?

Safety spectacles?and?goggles?can mist up when water vapour in the air condenses on the lens, making it difficult to see clearly.?

Learn how to select effective anti-mist eye protection below.

Why do eye protectors mist up??

?When warm air containing water vapour contacts the lens surface, it cools rapidly to its dew point, condensing as the liquid on the lens.

Goggles enclose part of the face to provide protection, causing the enclosed part of the body to retain more heat, and therefore moisture can build up quickly inside the goggle while working.?

Safety spectacle lenses can also mist up in cold environments and at high work rates. Misting can become a major problem when spectacles are worn with an item that covers the lower part of the face, directing exhaled air up toward the eyewear – for example, a medical / surgical mask, face covering, or?a poorly fitted respirator?that leaks around the face seal.

Selecting anti-mist eye protection

?To prevent moisture fogging up the lenses of safety eyewear, it is important to select an eye protector with an anti-mist coating.

Lenses marked ‘N’ pass an optional test for ‘resistance to fogging’ in EN 166, the European standard for personal eye protection. Spectacles and goggles marked ‘N’ offer reliable anti-mist performance.

N rated lenses are treated with a specialist coating designed to prevent mist forming on the lens surface, offering clear vision free from fogging.

Safety goggles with ventilation can help to prevent moisture build-up. Direct and indirect ventilation styles enable airflow to reduce moisture.?

Ventilated goggles help to reduce misting but some styles do not offer protection against other risks, such as fine dust and gas hazards, and a risk assessment must be carried out to ensure a vented goggle is appropriate for the task.?

Moisture Control technology

?JSP?Thermex? double lens goggle?with Moisture Control technology offers enhanced mist resistance. The unique Thermex? Moisture Control Patch works to balance air pressure build-up caused by heat or altitude.?

The?KN coated?outside lens and extremely efficient N rated inner lens ensure distortion-free vision with the very latest anti-mist technology. The Thermex? goggle is tested at -40°C for extreme low temperature protection.?

Find out more about Thermex? Moisture Control?here.

Find out more about our range of?Eye Protection?and Face Protection.

Have more questions on eye protection? Check out our?Eye Protection FAQ.

Take a look at our new?Eye and Face Protection Guide.?

How can we help?

?If you have any questions please?contact us?and our team will be happy to help with supply, usage or correct application of our products.