Vizor / Sirix / Fazor and Vizor Air/3X — auto-darkening welding helmets and air supply system

Technical specifications

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026. Customs codes are for reference only; the final code is determined at customs declaration for the specific model.

Description

The Autopilot filter adjusts the protection level to the arc intensity by itself, and the Vizor Connect receives a signal from the welding machine via Bluetooth and darkens before ignition. The Crystal Lens passes 31 % of light in the light state and grinding mode (shade 2), and True Color gives realistic colours. The Sirix Crystal and Sirix Professional have a field of view of 58×125 mm, a Slide-Up function for raising the inner filter and an Ergo headband, and weigh 640 and 620 g, while the lightest helmets in the range weigh 482 g. The Vizor Crystal and Vizor Connect have the same field, whereas the Vizor 4000 Crystal, Professional and Plus and the Fazor 1000 Plus have 50×100 mm. Under EN 379 the Sirix Professional and Vizor 4000 Professional are classified 1/1/1/1 and the rest 1/1/1/2, with 5 or 3 sensors. In the dark state the shade ranges from 4–12 to 4–13 in automatic mode and 7–13 in manual mode, the switching delay from dark to light is 0.1–2.0 s, and for the Fazor and Vizor 4000 Plus 0.05–1.0 s. Power comes from a lithium-polymer battery, in the Sirix with solar cell recharging, or from CR2032 cells.

How to choose

For class 1/1/1/1 optics choose the Sirix Professional or Vizor 4000 Professional, and the Slide-Up in the Sirix is convenient when welding alternates with grinding and cutting. If the machine supports Bluetooth, the Vizor Connect will darken before the arc. Almost all models are available in a version with fresh air supply, so in heavy fume the helmet is fitted with the Vizor Air/3X unit, which together with a compatible helmet filters out up to 99.8 % of fume particles.