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With the Helix Pure Air 2.5, you are equipped for all welding tasks that require a large field of view and frequent switching between clear and protective filters. With a brightness level of 2.5 for welding and a shading level range of 5 to 12, it is the ideal choice for a wide range of applications. The fresh air version is equipped with a PAPR adapter for the Optrel blower respiratory protection system e3000X and thus meets the highest requirements for air filtration and respiratory protection during welding.
Features
Helix Spare Outer Cover Lens x 1
Optrel Helmet Bag
Optrel User Manual
Optrel 2 Year Warranty (Register Online with Optrel for a Third Year)
Answers for buyers choosing and looking after Bluetooth-enabled auto-darkening welding helmets, including those used with a powered air system.
It depends on the work. The HSE points out that particulate filters do not protect against the gases that are present in welding fume. Depending on the process, the material and any coatings, your risk assessment may call for a combined filter that also deals with gases or vapours.Always use the filter types and breathing tube that the powered unit's maker approves for your helmet, as mixing parts can invalidate the protection. If you are unsure which filter your work needs, our team can help you choose, but the final decision should rest on your risk assessment and the maker's instructions.
Follow the maker's pre-use checks every time. These normally include a look at the filters, hose and seals for damage, checking the battery level, and testing the airflow with the flow meter or indicator supplied. Many units also have a low-airflow warning, and if yours does you should confirm it works as the manual describes.Do not weld if the airflow check fails or the warning does not work. Replace blocked filters as the manual describes, and keep a spare charged battery if you weld for long periods. The exact test method differs between units, so use the instructions that came with yours.
On helmets with Bluetooth, a smartphone app can usually let you change settings such as shade, sensitivity and delay without taking the helmet off, check battery status and sometimes save groups of settings for different jobs. Some designs can also link to the welding power source so the lens reacts before the arc is struck.Features differ between makers and software versions, so read the manual to see what your helmet and app support. Always confirm that the shade you have set is suitable for the process and current before you strike an arc.
The shade range shows how dark the lens can be set when the arc is lit. A lower number lets through more light, which is helpful for low-current work where you need to see detail, while a higher number is darker and suits higher currents. A wide range lets one helmet cover a variety of jobs.The right shade depends on the process and the welding current, and it is normally taken from the shade selection table in the relevant standard or the helmet manual. If the process you use needs a darker or lighter shade than the range allows, that helmet is not suitable for it.
