Asked by a personGeneral — US and Canadaen-CA

If you squint properly, do you need to wear a welding helmet

A person submitted this question to Rosie's free generator. The asker's identity is neither imported nor published.

Rosie's answer

Published by SALUS

Eye and Face Protection for Welding and Similar Operations ==========================================================

This document outlines the required safety measures, including appropriate eye and face protection, to prevent injury when performing tasks that may expose the eyes to intense light or sparks, such as during welding or similar operations. It emphasizes the importance of protecting against even minimal or indirect exposure to radiation, flying particles, and hot debris.

Importance of Eye Protection

Eye injury can result from the intense light and radiation produced by a welding arc, as well as from hot slag and metal debris that can be ejected during cooling, chipping, or grinding processes. Proper eye protection is crucial to prevent injuries such as arc eye (conjunctivitis), cataracts, and burns. [1]

Types of Eye and Face Protection

Various types of eye protection are available, each designed for specific uses. The CSA standard Z94\.3-20 classifies these protectors. Eye and face protectors should have distinctive markings to identify the manufacturer and their class. [1]

Class 2C — direct / non-ventilated goggles with non-ionizing radiation protection
Class 3 - welding helmets
Class 4 - welding hand shields
Class 6 - face shields for non-ionizing radiation protection
Class 7 - respirator facepiece for non-ionizing radiation protection

Full face protection, using either a welding helmet or a hand shield, is required for:

Arc welding
Plasma arc cutting, gouging, or welding
Air carbon arc cutting

For gas cutting, welding, or brazing, lighter shade filter lenses can be used with goggles instead of a helmet due to the lower light intensity. [1]

Components of Welding Hand Shields and Helmets

Hand shields and helmets provide eye protection through an assembly of components:

Helmet shell: Opaque to light and resistant to impact, heat, and electricity.
Outer cover plate: Made of polycarbonate plastic to protect from radiation, impact, and scratches.
Filter lens: Made of glass containing a filler to reduce the amount of light passing through to the eyes. Available in different shade numbers (2 to 14\), with higher numbers indicating darker filters.
Clear retainer lens: Made of plastic to prevent broken pieces of the filter lens from reaching the eye.
Gasket: Made of heat-insulating material between the cover lens and the filter lens to protect the lens from sudden heat changes.

Selection of Filter Lenses

The employer shall ensure that each affected employee uses equipment with filter lenses that have a shade number appropriate for the work being performed for protection from injurious light radiation. Appropriate shade numbers for various operations are listed in the table below. [2]

OPERATIONS	ELECTRODE SIZE 1/32 IN.	ARC CURRENT	MINIMUM* PROTECTIVE SHADE
Shield metal Arc welding	Less than 3	Less than 60	7
Shield metal Arc welding	3 - 5	60 160	8
Shield metal Arc welding	5 - 8	160 250	10
Shield metal Arc welding	more than 8	250 550	11
Gas metal arc welding and flux cored arc welding		Less than 60	7
Gas metal arc welding and flux cored arc welding		60 160	10
Gas metal arc welding and flux cored arc welding		160 250	10
Gas metal arc welding and flux cored arc welding		250 500	10
Gas tungsten arc welding		Less than 50	8
Gas tungsten arc welding		50 150	8
Gas tungsten arc welding		150 500	10
Air carbon	(Light)	Less than 500	10
Arc cutting	(Heavy)	500 1000	11
Plasma arc welding		Less than 20	6
Plasma arc welding		20 100	8
Plasma arc welding		100 400	10
Plasma arc welding		400 800	11
Plasma arc cutting	(Light) (Medium) (Heavy)**	Less than 300	8
Plasma arc cutting	(Light) (Medium) (Heavy)**	300 400	9
Plasma arc cutting	(Light) (Medium) (Heavy)**	400 - 800	10
Torch brazing			3
Torch soldering			2
Carbon arc welding			14

As a rule of thumb, start with a shade that is too dark to see the weld zone. Then go to a lighter shade which gives sufficient view of the weld zone without going below the minimum. In oxyfuel gas welding or cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs the yellow or sodium line in the visible light of the (spectrum) operation. [3]

** These values apply where the actual arc is clearly seen. Experience has shown that lighter filters may be used when the arc is hidden by the workpiece. [3]

Additional Eye Protection Measures

Choose a tight-fitting helmet to reduce light reflection into the helmet.
Wear the helmet correctly; do not use it as a hand shield.
Protect the shade lens from impact and sudden temperature changes.
Use a cover lens to protect the filter shade lens and replace it when scratched or hazy.
Replace the gasket periodically if the helmet uses one.
Replace the clear retaining lens to protect eyes from broken pieces.
Clean lenses periodically and discard pitted, cracked, or damaged lenses.

Contact Lenses

CSA Standard W117\.2 states that contact lenses should not be worn by welders and welding personnel because foreign bodies in the eye can cause excessive irritation. Contact lenses do not provide protection from ultraviolet radiation and flying objects. All workers in proximity to welding procedures must wear appropriate eye protection according to the circumstances. [4]

Skin Protection

In addition to eye protection, it is important to protect the skin 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.
Ensure all fabric garments are resistant to spark, heat, and flame. Keep the fabrics clean and free of combustible materials.

General Requirements

The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from flying particles, molten metal, liquid chemicals, acids or caustic liquids, chemical gases or vapors, or potentially injurious light radiation.
The employer shall ensure that each affected employee uses eye protection that provides side protection when there is a hazard from flying objects. Detachable side protectors (e.g. clip-on or slide-on side shields) meeting the pertinent requirements of this section are acceptable.
The employer shall ensure that each affected employee who wears prescription lenses while engaged in operations that involve eye hazards wears eye protection that incorporates the prescription in its design, or wears eye protection that can be worn over the prescription lenses without disturbing the proper position of the prescription lenses or the protective lenses.
Eye and face PPE shall be distinctly marked to facilitate identification of the manufacturer.

Maintenance and Cleanliness

A face or eye protector shall be kept clean and in good repair.
Cleaning facilities for protectors shall be provided away from the hazard, but readily accessible to the wearer.
A slack, worn out, sweat-soaked, knotted, or twisted headband shall be replaced.
A face or eye protector is a personal item and shall be for the individual and exclusive use of the person to whom it is issued. If circumstances require reissue, the protector shall be thoroughly cleaned, sanitized, and in good condition.

Safety powered by SALUS

4 source record(s)

Sources used for this answer

[1] General Industry Safety and Health Standards (MIOSHA)

Page 5

Open source document

Source excerpt

# 1910.133 - EYE AND FACE PROTECTION - 1910.133(a) General requirements. 1910.133(a)(1) The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from flying particles, molten metal, liquid chemicals, acids or caustic liquids, chemical gases or vapors, or potentially injurious light radiation. - 1910.133(a)(2) The employer shall ensure that each affected employee uses eye protection that provides side protection when there is a hazard from flying objects. Detachable side protectors (e.g. clip-on or slide-on side shields) meeting the pertinent requirements of this section are acceptable. - 1910.133(a)(3) The employer shall ensure that each affected employee who wears prescription lenses while engaged in operations that involve eye hazards wears eye protection that incorporates the prescription in its design, or wears eye protection that can be worn over the prescription lenses without disturbing the proper position of the prescription lenses or the protective lenses. 1910.133(a)(4) Eye and face PPE shall be distinctly marked to facilitate identification of the manufacturer. 1910.133(a)(5) The employer shall ensure that each affected employee uses equipment with filter lenses that have a shade number appropriate for the work being performed for protection from injurious light radiation. The following is a listing of appropriate shade numbers for various operations. <table><tr><th colspan="4">FILTER LENSES FOR PROTECTION AGAINST RADIANT ENERGY</th></tr><tr><td>OPERATIONS</td><td>ELECTRODE SIZE 1/32 IN.</td><td>ARC CURRENT</td><td>MINIMUM* PROTECTIVE SHADE</td></tr><tr><td rowspan="4">Shield metal Arc welding</td><td>Less than 3</td><td>Less than 60</td><td>7</td></tr><tr><td>3 - 5</td><td>60 160</td><td>8</td></tr><tr><td>5 - 8</td><td>160 250</td><td>10</td></tr><tr><td>more than 8</td><td>250 550</td><td>11</td></tr><tr><td rowspan="4">Gas metal arc welding and flux cored arc welding</td><t…

[2] Welding - Personal Protective Equipment and Clothing

Page 4

Open source document

Source excerpt

# Welding - Personal Protective Equipment and Clothing (cont.) ## Why is eye protection important? Eye injury can occur from the intense light and radiation that a welding arc can produce. Eye injury can also occur from hot slag and other metal debris 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 type of eye and face protection is appropriate for my welding task? The various types of eye protection are broken down into classes in the CSA standard Z94.3- 20 "Eye and face protectors". Each class is designed for a specific use. Eye and face protectors should have distinctive markings to identify the manufacturer and their class. Classifications of common protectors for welding operations are listed below: - Class 2C — direct / non-ventilated goggles with non-ionizing radiation protection - Class 3 - welding helmets - Class 4 - welding hand shields - Class 6 - face shields for non-ionizing radiation protection - Class 7 - respirator facepiece for non-ionizing radiation protection The following operations require full face protection by using either a welding helmet or a hand shield: - arc welding, - plasma arc cutting, gouging or welding, and - air carbon arc cutting. For gas cutting, welding, or brazing, the intensity of the light is much less than from arc welding, cutting or gouging processes. Lighter shade filter lenses can be used with goggles in place of a helmet. More information can be found in the OSH Answers on Eye and Face Protectors. What are the various components of welding hand shields and helmets? Welding - Personal Protective Equipment and Clothing CCOHS

[3] General Industry Safety and Health Standards (MIOSHA)

Page 6

Open source document

Source excerpt

# 1910.133 - EYE AND FACE PROTECTION (cont.) <table><tr><th colspan="4">FILTER LENSES FOR PROTECTION AGAINST RADIANT ENERGY</th></tr><tr><td>OPERATIONS</td><td>PLATE THICKNESS- INCHES</td><td>PLATE THICKNESS-mm</td><td>MINIMUM* PROTECTIVE SHADE</td></tr><tr><td colspan="4">Gas Welding:</td></tr><tr><td>Light</td><td>Under 1/8</td><td>Under 3.2</td><td>4</td></tr><tr><td>Medium</td><td>1/8 to 1/2</td><td>3.2 to 12.7</td><td>5</td></tr><tr><td>Heavy</td><td>Over 1/2</td><td>Over 12.7</td><td>6</td></tr><tr><td colspan="3">Oxygen Cutting:</td><td></td></tr><tr><td>Light</td><td>Under 1</td><td>Under 25</td><td>3</td></tr><tr><td>Medium</td><td>1 to 6</td><td>25 to 150</td><td>4</td></tr><tr><td>Heavy</td><td>Over 6</td><td>Over 150</td><td>5</td></tr></table> * As a rule of thumb, start with a shade that is too dark to see the weld zone. Then go to a lighter shade which gives sufficient view of the weld zone without going below the minimum. In oxyfuel gas welding or cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs the yellow or sodium line in the visible light of the (spectrum) operation. ** These values apply where the actual arc is clearly seen. Experience has shown that lighter filters may be used when the arc is hidden by the workpiece. 1910.133(b) Criteria for protective eye and face protection. 1910.133(b)(1) Protective eye and face protection devices must comply with any of the following consensus standards: 1910.133(b)(1)(i) ANSI/ISEA Z87.1-2010, Occupational and Educational Personal Eye and Face Protection Devices, incorporated by reference in § 1910.6; 1910.133(b)(1)(ii) ANSI Z87.1-2003, Occupational and Educational Personal Eye and Face Protection Devices, incorporated by reference in § 1910.6; or 1910.133(b)(1)(iii) ANSI Z87.1-1989 (R-1998), Practice for Occupational and Educational Eye and Face Protection, incorporated by reference in § 1910.6; 1910.133(b)(2) Protective eye and face protection dev…

[4] Welding - Personal Protective Equipment and Clothing

Page 7

Open source document

Source excerpt

# Welding - Personal Protective Equipment and Clothing (cont.) ## What should you know about filter shade selection? (cont.) - Do not use gas welding goggles for arc welding. - Do not substitute modified glasses, sunglasses, smoked plastic or other materials for proper welding lenses. The recommended shade numbers for oxygen cutting are shown in the table below. Shade Numbers for Cutting (from CSA W117.2) <table><tr><th>Process</th><th>Plate Thickness (in mm)</th><th>Minimum Shade #</th><th>Suggested Shade #</th></tr><tr><td rowspan="3">Light Medium Heavy</td><td>< 25</td><td>3</td><td>4</td></tr><tr><td>25 150</td><td>4</td><td>5</td></tr><tr><td>> 150</td><td>5</td><td>6</td></tr></table> * In the US use ANSI/AWS Standard F2.2 for selecting filter lens shade. ## Can you wear contact lenses when welding? The CSA Standard W117.2 states that contact lenses should not be worn by welders and welding personnel because foreign bodies (objects) in the eye can cause excessive irritation. Contact lenses do not provide protection from ultraviolet radiation and flying objects. All workers in proximity to welding procedures must wear appropriate eye protection according to the circumstances. The OSH Answers document Contact Lenses at Work discusses how dust particles or chemicals can irritate the eyes. Note that in Canada, Prince Edward Island's Occupational Health and Safety Act General Regulations Section 45.11 specifically bans wearing contact lenses while welding. ## What measures can protect skin 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 …

Publication receipt

Publisher: SALUS
Final reviewer: Francis Langlois
Original answer: Aug 6, 2025

Who, how, and why

Rosie, the contractors' AI Admin & Risk Assistant, works across the operational workflows to take care of the busy work, make capture in the field effortless, surface risk, and create business-ready outputs—without removing human judgment.

Rosie was grounded in a curated, human-created, SALUS-verified source library and retrieved relevant material for each question. SALUS published the English answer exactly as generated after duplicate screening. Francis Langlois reviewed the English content.

Rosie was offered as a free tool so people could ask real workplace-safety questions and receive immediate guidance. SALUS is preserving these human-requested answers because the same questions recur across jobsites and safety teams, and because the resulting threads can help people compare experience, clarify guidance and find relevant supporting material.

Topics

Chemical safety Safety compliance Electrical safety Equipment safety Incident management Personal protective equipment

This information supports professional judgment; it does not replace applicable requirements, site-specific procedures, or advice from a qualified person.

Community answers can add practical context. They are moderated, but they are not SALUS-reviewed safety guidance.

New contributions are temporarily closed while the moderation queue is configured.

Community answers(0)

No community answers have been approved yet.

Comments on Rosie's answer(0)

No comments have been approved yet.

Rosie's answer

Sources used for this answer

Keep exploring.

Create a pre-task plan for spraying fireproofing

Daily safety briefing for equipment inspection

i want to make a JSA for replacement of busted hyd hose of a drill machine smartrock T45

Write a toolbox talk on Pre-Use Equipment Walk-Arounds

Toolbox talk on wearing worn out safety boots

ppe general industry

Add your experience.

Community answers(0)

Comments on Rosie's answer(0)

Ready to put operational safety to work?