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This factor is often overlooked during the initial purchase decision. Over the lifetime of the helmet, the accumulated cost of replacement filters can often exceed the original cost of the helmet. Replacement filters for the Weldclass PROMAX R50 PAPR respirator unit are prices very competitively (up to 50% lower than some other brands), to reduce operating costs and maximise ROI on your helmet investment.

The Weldclass PROMAX R50 PAPR respirator unit (supplied with PROMAX 680R and PROMAX 850R PAPR helmets) features a high quality battery to provide an operating time of up to 10 hours, whilst also allowing generous filter size to be used to maximise filter life and lower maintenance cost.

The complete guide to the Respirator Welding Helmet, or Welding Mask With Respirator, plus comparisons with other welding fume control and safety methods.

The laser warning sign indicates the presence of a laser with enough power to cause injury to your eyes or skin. Do Not Enter a room with this symbol unless you are sure the laser is off. Do Not Enter a room if you cannot determine if the laser is on or off from the lighted warning sign outside of the lab.

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The GHS (Globally Harmonized System) symbols were developed by the United Nations as a world-wide standardized system for the classification and labeling of chemicals. Click here to view the GHS symbols.

Safety Data Sheets (SDSs) provide chemical-specific information, including chemical, physical, and toxicological properties, along with suggestions for storing, using, transporting, and disposing of chemicals. Current regulations require that all SDSs follow the same format (see OSHA Safety Data Sheet information). SDSs should be consulted as a first step in assessing risk associated with a new experiment or product.

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Individuals with pacemakers, other medical electronic devices or metallic implants MUST STAY OUT of areas with this warning sign. This warning sign is common in rooms with Nuclear Magnetic Resonance (NMR) machines.

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Know the hazards associated with the materials you use! Always review chemical safety information, such as an SDS or other resource, before starting work with a new or unfamiliar chemical.

Chemical-specific hazard, toxicological, medical, and environmental information can be found through the RightAnswer online information system. The UC Office of the President has obtained a site license for this excellent resource, and it is available to all main UC sites with UC IP addresses. You will need to register when you use the system for the first time, but you will not need to pay. Contact EH&S at (831) 459-2553 or ehs@ucsc.edu  for assistance or questions.

All areas where radioactive materials or x-rays are used are posted with this symbol. The symbol also identifies specific equipment, containers, rooms, and items that contain, or are potentially contaminated, with radioactive material.

A PAPR (Powered Air Purifying Respirator) welding helmet is an advanced protective device designed for welders, combining respiratory protection with eye and face shielding. This type of helmet incorporates a battery-powered 'blower' that pulls air through a filter, removing contaminants such as dust, fumes, and particles before delivering clean air into the helmet's breathing zone. The continuous flow of positive-pressure purified air not only helps in preventing inhalation of harmful substances but also keeps the welder cool and comfortable. PAPR welding helmets are particularly beneficial in environments with high levels of airborne pollutants, ensuring enhanced safety and compliance with health regulations while allowing welders to perform their tasks with improved visibility and reduced fatigue.

Rooms or areas within rooms that contain high voltage equipment are posted with this warning sign. These areas can present significant hazards should a flood or water leak occur. Do not work on or handle open wiring or open devices that may be energized.

Not all welding helmet respirator systems are tested to, or compliant with, Australian standards.  The applicable standards include AS/NZS 1716 (respirator), AS/NZS 1337.1 (welding helmet), and AS/NZS 1338.1 (auto-darkening lens).

*7 Year Warranty Offer: click here for details, registration required after purchase.  Due to ongoing development, product specifications are subject to change at any time without notice and Weldclass does not guarantee that a product supplied or offered for sale by Weldclass or any of our distributors/retailers will be identical in appearance or specifications to the product advertised on this website. Any product application information, recommendations or suggestions on this website are presented as a "typical” and an indicative guide only, without guarantee or warranty, and Weldclass expressly disclaims any liability incurred from any reliance thereon. No data is to be construed as an official recommendation for any equipment selection, or operating proceedure or technique by Weldclass. The correct product(s), settings, proceedures and techniques will vary in each application and users should conduct their own research to determine what is correct and best for their application. Welding fumes and gases can be dangerous to health. Arc radiation can injure eyes and burn skin. Electric shock can kill. Always wear correct eye, ear and body protection. Do not touch live electrical parts. Read & follow WTIA Techincal Note 7 ”Health and Safety in Welding” & AS 1674 “Fire Precautions in Cutting, Heating and Welding Operations”. View Weldclass' full terms and conditions here. E.&O.E.The following trademarks are registered in Australia by JWL Marketing Pty Ltd trading as Weldclass: Weldclass®, GL-11®, Weldclass Promax®, Weldclass Platinum®, Weldclass Ultra®, Weldclass Force®, WeldForce®, Allclear®, CutForce®

Here we cover some of the key pros and cons of welding helmets with respirators (or PAPR welding helmets), vs other methods of welding fume control.

The size of the replaceable filter (eg surface area of the filter in cm2) can have an impact on the performance, and ongoing maintenance cost, of the respirator unit.  A larger filter will typically absorb more fume dust and therefore last longer before needing to be replaced, however this places more demand on the battery and shortens battery charge life. Conversely, a smaller filter will need to be replace more frequently, but will reduce battery load.

Becuase air fed welding masks need to incororate air ducts, face seals, etc, they are more cumbersome to fit and remove vs a standard welding helmet. This can be an inconvenience where the operator would traditionally lift up, or remove, the helmet to adjust the auto-darkening lens controls, or for better vision when grinding, chipping, etc. To address this, some PAPR welding helmet models now offer a flip-up design.  Here's a comparison between different helmet designs:

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Weldclass PROMAX 680R and PROMAX 850R PAPR helmets comply with these standards, giving you peace of mind that your investment will provide the protection that you need and expect.

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The biological hazard warning is used to identify locations, equipment or materials where infectious agents may create a health risk. It is used to identify specific equipment, containers, rooms, and waste items that are known or potentially contaminated with biohazardous materials.

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The UC Office of the President maintains a web page (ehs.ucop.edu/sds) for chemical information, including a custom Google search for Safety Data Sheets, a link to the RightAnswer chemical information system (see below), and other useful sources.  UC Safety Data Sheet Resources

This warning sign is common in rooms with Nuclear Magnetic Resonance (NMR) machines. Do not approach the magnetic field area with metallic objects, including tools or equipment.

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Laboratory spaces where designated biological, chemical, or radiological materials are used or where potential physical hazards exist are posted with warning signs. Researchers, staff, and visitors should note and understand hazard communication information provided on the warning signs, including specific hazardous agents (biological, chemical, radiological) and physical hazards (lasers, magnetic fields) present and used in the space, stated precautions (no food or drink allowed), and required personal protective equipment (lab coat, eye protection, gloves, etc.).

Here's some key features and differences to be aware of, when shopping for Welding helmets with PAPR respirator / air fed welding helmets: