Visionary technologies at a glance
The uvex megasonic’s revolutionary lens design has an exceptional field of vision with clarity in every direction — even under difficult conditions. The sporty, ergonomic design and ultra-comfortable fit means these goggles both protect and allow you to get on with your day.

General features
Functional welding protection goggles in ski goggle design with panoramic view
Unique, frameless lens design with maximum optimised field of view for better hazard perception and increased safety
Robust polycarbonate lens with proven uvex infradur coating technology – permanently anti-fog and scratch-resistant lens
Metal-free
Frame colour: black
Headband: black, green
PC lens: grey, welding protection level 5
Comfort features
Soft, adaptive face pad provides a universal fit for different head and face shapes and a tight fit without pressure points
Generous internal volume and recesses for the side arms of the glasses allow comfortable wear without pressure points, even for glasses wearers
Indirect ventilation system increases air circulation
30-mm-wide length-adjustable fabric headband for optimum hold and individual adjustment
Protection features
Certified in line with EN 166 (personal eye protection) and EN 169 (welding shade)
Welding protection level: 5
Marking: W 166 34 BT CE – 5 W1 BTKN CE
IR protection according to EN 169 with perfect colour recognition according to EN 172
UV400 – 100% protection against dangerous UVA and UVB radiation to 400 nm
Increased mechanical strength – BT marking (120 m/s
Tested under extreme temperatures -5°C, +55°C)
Sustainability
Cradle-to-Customer: 0.7 kg CO₂ eq
Carbon footprint of production: 0.03 kg CO₂ eq
Carbon footprint of material: 0.60 kg CO₂ eq
Carbon footprint of transportation: 0.03 kg CO₂ eq
Carbon footprint of packaging: 0.04 kg CO₂ eq
Legal notice regarding carbon footprint: Calculation method: IPCC 2021 GWP 100a (based on ISO 14067) SimaPro 9.5.0.0 ecoinvent database 3.9 and EU27. Scope: cradle-to-customer. These CO₂ values are valid at the time of calculation and may be subject to change.