SESK: Stuff Everyone Should Know · sesk.info/weld-zinc-galvanized-indoors
Indoors, OSHA says welding galvanized (zinc-coated) steel must be done with what?
Local exhaust ventilation, such as movable hoods or booths.
- Local exhaust hoods or booths ✔
- A darker lens only
- Nothing if the job is under an hour
Why: Zinc fumes can cause metal fume fever, with chills, fever, aches and nausea. Indoors, OSHA sends zinc work to its local exhaust rules: hoods near the arc or fixed booths.
Huh, didn't know that: OSHA wants a movable exhaust hood to pull air at 100 feet per minute in the welding zone, even at its farthest point.
What do you get when you cross a nutrient that helps the immune system with an animated scare factory? Monsters, Zinc.
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References
Answer: Local exhaust hoods or booths. Zinc fumes can cause metal fume fever, with chills, fever, aches and nausea. Indoors, OSHA sends zinc work to its local exhaust rules: hoods near the arc or fixed booths.
- OSHA 29 CFR 1910.252 General requirements, welding, cutting and brazing www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.252
Indoors, welding or cutting involving zinc-bearing base or filler metals coated with zinc-bearing materials shall be done in accordance with paragraph (c)(3)
Checked 2026-10-10. - NIOSH Pocket Guide to Chemical Hazards, Zinc oxide www.cdc.gov/niosh/npg/npgd0675.html
Metal fume fever: chills, muscle ache, nausea, fever, dry throat, cough
Checked 2026-10-10.
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