H330 — Fatal if inhaled

The GHS hazard statement for acute toxicity, inhalation, categories 1 and 2. Here is what it means, the label elements that travel with it, and the substances that carry it.

AT A GLANCE · OFFICIAL STATEMENT
“Fatal if inhaled.”
HAZARD CLASS
Acute toxicity, inhalation
CATEGORY
Categories 1 and 2
SIGNAL WORD
Danger

What it means

Serious harm from breathing the substance — as gas, vapor, dust, or mist — over a single short exposure. Categories are set from acute toxicity estimates (ATE) per GHS Chapter 3.1.

Precautionary statements paired with H330

When the engine writes SDS Section 2 for a product carrying H330, these are the precautionary statements it assigns, with combined statements written as one line:

Substances that carry H330

194 of the 4,228 substances in our database carry H330 when classified in pure form — recognizable examples:

formaldehyde
CAS 50-00-0
glutaral
CAS 111-30-8
(E)-2-butenal
CAS 123-73-9
(R)-4-hydroxy-3-(3-oxo-1-phenylbutyl)-2-benzopyrone
CAS 5543-58-8
SAME HAZARD CLASS:H331H332H333

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.