GHS REFERENCE / P-CODES / P271

P271 — Use only outdoors or in a well-ventilated area

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

At a glance

Official statementUse only outdoors or in a well-ventilated area.
GroupPrevention (P2xx)

Which hazards call for P271

Our engine assigns P271 whenever a product carries any of these hazard statements:

H330Fatal if inhaled.
H331Toxic if inhaled.
H332Harmful if inhaled.
H335May cause respiratory irritation.
H336May cause drowsiness or dizziness.
Reference information, not legal or professional advice. Statement texts and allocations follow GHS Rev 9 / 29 CFR 1910.1200 Appendix C 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 or a container label, it assigns the hazard statements, signal word, pictograms, and precautionary statements from these same tables — automatically, with the calculation shown.

Start freeHow classification works