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P285 — In case of inadequate ventilation wear respiratory protection

A prevention statement from GHS Annex 3 — the precautionary half of the label language on SDSs and containers.

AT A GLANCE · OFFICIAL STATEMENT
“In case of inadequate ventilation wear respiratory protection.”
GROUP
Prevention (P2xx)
ANNEX 3 ROLE
Keep the exposure or event from happening
ASSIGNED BY THE ENGINE
Not automatically — appears where suppliers or other GHS classes require it

Later GHS revisions folded this statement into P284, the code OSHA HazCom 2024 uses. Both still appear on sheets in circulation, so we list both.

Which hazards call for P285

None of the hazard statements in our catalog calls for P285; it appears on labels where suppliers or other GHS classes require it.

Reference information, not legal or professional advice. Statement texts and allocations follow 29 CFR 1910.1200 Appendix C (the GHS as adopted by OSHA HazCom 2024) as implemented by our classification engine; the regulatory text and agency practice control. Claims last reviewed July 23, 2026.

The engine writes these for you.

When SDS HQ authors an SDS, it assigns the hazard statements, signal word, pictograms, and precautionary statements from these same tables — automatically, with the calculation shown.