Regular Price: $58.57
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3M™ Speedglas™ Fresh-Air III Supplied Air System with V-100 Vortex Air-Cooling Valve and 3M™ Speedglas™ Welding Helmet 9100MP, 27-5702-10SW, with Hard Hat, SideWindows and Auto-Darkening Filter 9100V, Shades 5, 8-13
Regular Price: $1,607.49
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Regular Price: $27.45
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3M™ Particulate Respirator 8214, N95, with Faceseal and Nuisance Level Organic Vapor Relief (Box of 10)
Regular Price: $73.73
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3M™ Half Facepiece Respirator Assembly 6191/6291, with 3M™ Particulate Filters 2091, P100 (1 Respirator Assembly)
Regular Price: $18.50
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Regular Price: $7.99
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3M™ Adflo™ Powered Air Purifying Respirator (PAPR) High Efficiency Particulate Filter 15-0299-99X36 (Case of 36)
3M™ Adflo™ PAPR with 3M™ Hard Hat L-705SG, 34-0705-SGX, Li Ion Battery, Welding Shield, Wideview Faceshield, ADF 9100X
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3M™ Adflo™ PAPR with 3M™ Hard Hat L-705SG, 34-0705-SGV, Li Ion Battery, Welding Shield, Wideview Faceshield, ADF 9100V
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3M™ Adflo™ PAPR with 3M™ Speedglas™ Welding Helmet 9100MP, 37-1101-30SW, HE, Li Ion Battery, Hard Hat, ADF 9100XX
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3M™ Adflo™ PAPR with 3M™ Speedglas™ Welding Helmet 9100MP, 37-1101-20SW, HE, Li Ion Battery, Hard Hat, ADF 9100X
Regular Price: $2,526.72
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3M™ Adflo™ PAPR with 3M™ Speedglas™ Welding Helmet 9100MP, 37-1101-10SW, HE, Li Ion Battery, Hard Hat, ADF 9100V
Regular Price: $2,411.10
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3M™ Adflo™ PAPR with 3M™ Hard Hat L-705SG, 34-0705-SGXX, Li Ion Batt, Welding Shield, Wideview Faceshield, ADF 9100XX
Regular Price: $2,876.32
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Choosing the Correct Welding Respirator
In order to select the proper welding respirator for maximum protection against particulates, determine the following conditions:
- The concentration and identity of particles in the air.
- The OSHA, MSHA, or NIOSHA permissible exposure limit (PEL).
- Hazard ration (HR) - the airborne particulate concentration divided by the exposure limit.
- The Assigned Protection Factor (APF) for the class of respirators, which should not be larger than the HR.
- Any service life information available for cartridges or canisters.
Once you complete an assessment of the environment, you can select the right respirator for welding.
Types of Respirators
- Air-Purifying Respirators - These welding respirators can be either a filtering facepiece, full-face, or half-face mask with mechanical or chemical cartridges to remove dust, mists, fumes, vapors, or gases. They are available in three types.
- Filtering Facepiece Respirators – This variety is disposable and is intended for one-time-use only. They filter out just particulate matter.
- Disposable Air-Purifying Respirators – This type of breathing gear works for one-time use or until the cartridge expires. Cartridges are permanent parts and, therefore, you cannot replace them.
- Reusable Air-Purifying Respirators – These masks use both replaceable cartridges and parts.
- Powered Air-Purifying Respirators (PAPR) - These respirators use a blower to pass the contaminated air through a filter, purify it, then deliver it to a mask or hood. PAPR masks filter mists, dust, fumes, vapors, and gases, similar to ordinary welding respirators. You cannot use PAPRs in oxygen-deficient atmospheres, which can result when another gas displaces the oxygen or consumption of oxygen by a chemical reaction that occurs. Oxygen levels that are below 19.5 percent will require a source of supplied air or supplied air respirator protection. Levels below 16 percent are considered life threatening.
Other features are available to help customize your needs for the right respirator for welding. Nose cups are available and reduce fogging, while lens covers protect the lens from paint, minor chemical splashes, and scratches.
Toxic Fumes and Gases
Studies show that full-time welders are at an increased risk of bronchitis, airway irritation, lung function changes, and lung cancer. Recent studies suggest a link between welding fumes and nerve disorders. There are two main categories of respiratory hazards:
- Welding Fumes
- Gases and Vapors
The primary airborne contaminant found in arc welding is welding fume. Welding fume is a complex mixture of very small particles of metal oxides. The specific components depend on the composition of the welding electrode (stick, wire, or filler rod), base metal, surface coatings, and the type of shielding gas or flux. Wear a particulate or half face welding respirator for protection.
When electrode coatings, fluxes, shielding gases, and surface coatings are burned or exposed to ultraviolet arc rays, they can generate potentially harmful gases, such as carbon monoxide, ozone, nitrogen oxides, gaseous fluoride, and phosgene. Whenever feasible, you should use local and area ventilation systems to remove harmful fumes and gases. However, in many cases engineering controls alone cannot reduce exposure levels adequately. In these situations, it may be appropriate to use respirators. For most welding applications, an array of welding respirator options exist that offer specific benefits and limitations.