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Personal Protective Equipment and Clothing
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Why is eye protection important?
What are the various components of eye protection for welders?
What else should you know about eye protection?
What should you know about filter shade selection?
Can you wear contact lenses when welding?
What measures can you use for skin protection from welding radiation?
What should you know about using respirators when welding?
What are some tips to know when using protective clothing?
Why is eye protection important? Eye injury can occur from the intense light and radiation from a welding arc and from hot slag that can fly off from the weld during cooling, chipping or grinding. - Protect your eyes from welding light by wearing a welder's helmet fitted with a filter shade that is suitable for the type of welding you are doing.
- ALWAYS wear safety glasses with side shields or goggles when chipping or grinding a work piece if you are not wearing a welding helmet.
What are the various components of eye protection for welders? Eye protection is provided in an assembly of components: - Helmet shell - must be opaque to light and resistant to impact, heat and electricity.
- Outer cover plate made of polycarbonate plastic which protects from UV radiation, impact and scratches.
- Filter lens made of glass containing a filler which reduces the amount of light passing through to the eyes. Filters are available in different shade numbers ranging from 2 to 14. The higher the number, the darker the filter and the less light passes through the lens.
- Clear retainer lens made of plastic prevents any broken pieces of the filter lens from reaching the eye.
- Gasket made of heat insulating material between the cover lens and the filter lens protects the lens from sudden heat changes which could cause it to break. In some models the heat insulation is provided by the frame mount instead of a separate gasket.
What else should you know about eye protection? - Choose a tight fitting helmet to help reduce light reflection into the helmet through the space between the shell and the head.
- Wear the helmet correctly. Do not use it as a hand shield.
- Protect the shade lens from impact and sudden temperature changes that could cause it to crack.
- Use a cover lens to protect the filter shade lens. Replace the cover lens if it gets scratched or hazy.
- Make sure to replace the gasket periodically if your helmet uses one.
- Replace the clear retaining lens to protect your eyes from broken pieces.
- Clean lenses periodically.
- Discard pitted or damaged lenses.
What should you know about filter shade selection? For Arc welding, the correct filter shade is selected according to the welding process, wire diameter, and operating current. The table below gives the correct shade numbers for different situations. - ALWAYS use suggested shade numbers instead of minimum shades.
- Provide additional task lighting that suits welders' needs.
- Use the same shade as the welder's if you are directly observing the welding arc.
- Do not use gas welding goggles for arc welding.
- Do not substitute modified glasses, sunglasses, smoked plastic or other materials for proper welding lenses.
For gas cutting, welding and brazing, the intensity of the light is much less than from arc welding. Lighter shade filter lenses are used with goggles in place of a helmet. The correct shade numbers for oxyfuel cutting are shown in the table below. 
Can you wear contact lenses when welding? As stated in the OSH Answers document Contact Lenses at Work, dust particles or chemicals that can irritate the eyes may be present in many welding areas. Wearing contact lenses may not be advisable in such workplaces. Reports of contact lenses being "welded" to the cornea (or lens of the eye) as a result of exposure to an arc flash have been proven to be incorrect. It is impossible for contact lenses to become "welded" to the cornea. All workers in proximity to welding procedures must wear appropriate eye protection whether they are using contact lenses or not. Note that in Canada, Prince Edward Island's Occupational Health and Safety Act Regulations (E.C. 180/87) Section 45.11 specifically bans wearing contact lenses while welding. What measures can you use for skin protection from welding radiation? - Wear tightly woven work-weight fabrics to keep UV radiation from reaching your skin.
- Button up your shirt to protect the skin on the throat and neck.
- Wear long sleeves and pant legs.
- Cover your head with a fabric cap to protect the scalp from UV radiation.
- Protect the back of your head by using a hood.
- Protect your face from UV radiation by wearing a tight-fitting, opaque welder's helmet.
- Make sure that all fabric garments are resistant to spark, heat and flame. Keep the fabrics clean and free of combustible materials that could be ignited by a spark.
What should you know about using respirators when welding? Respiratory protection is needed when ventilation is not sufficient to remove welding fumes or when there is risk of oxygen deficiency. - Select and use respirators in compliance with your workplace regulation.
- Seek expert advice and initiate a proper respiratory protection program.
The process of selecting appropriate respiratory protection is outlined in Canadian Standards Association (CSA) standard Z94.4 and American National Standards Institute (ANSI) Z88.2 standard "Respiratory Protection". What are some tips to know when using protective clothing? DO - Wear clothing made from heavyweight, tightly woven, 100% wool or cotton to protect from UV radiation, hot metal, sparks and open flames. Flame retardant treatments become less effective with repeated laundering.
- Keep clothing clean and free of oils, greases and combustible contaminants.
- Wear long-sleeved shirts with buttoned cuffs and a collar to protect the neck. Dark colours prevent light reflection.
- Tape shirt pockets closed to avoid collecting sparks or hot metal or keep them covered with flaps.
- Pant legs must not have cuffs and must cover the tops of the boots. Cuffs can collect sparks.
- Repair all frayed edges, tears or holes in clothing.
- Wear high top boots fully laced to prevent sparks from entering into the boots.
- Use fire-resistant boot protectors or spats strapped around the pant legs and boot tops, to prevent sparks from bouncing in the top of the boots.
- Remove all ignition sources such as matches and butane lighters from pockets. Hot welding sparks may light the matches or ignite leaking lighter fuel.
- Wear gauntlet-type cuff leather gloves or protective sleeves of similar material, to protect wrists and forearms. Leather is a good electrical insulator if kept dry.
- Direct any spark spray away from your clothing.
- Wear leather aprons to protect your chest and lap from sparks when standing or sitting.
- Wear layers of clothing. To prevent sweating, avoid overdressing in cold weather. Sweaty clothes cause rapid heat loss. Leather welding jackets are not very breathable and can make you sweat if you are overdressed.
- Wear a fire-resistant skull cap or balaclava hood under your helmet to protect your head from burns and UV radiation.
- Wear a welder's face shield to protect your face from UV radiation and flying particles.
DO NOT - Do not wear rings or other jewellery.
- Do not wear clothing made from synthetic or synthetic blends. The synthetic fabric can burn vigorously, melt and produce bad skin burns.
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Document last updated on April 17, 2001
Copyright ©1997-2008 Canadian Centre for Occupational Health & Safety
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