GHS hazard statement
H304
May be fatal if swallowed and enters airways (aspiration hazard)
GHS08 · Health hazard- Hazard group
- Health hazards
- Hazard class
- Aspiration hazard
- Signal word
- Danger
What H304 means
H304 is the GHS (Globally Harmonized System) hazard statement “May be fatal if swallowed and enters airways (aspiration hazard).” It belongs to the Aspiration hazard hazard class and appears in Section 2 of a Safety Data Sheet and on the product label when a substance or mixture meets the classification criteria for that class and category.
Where H304 applies, GHS assigns the signal word Danger and the GHS08 (Health hazard) pictogram. The exact signal word and pictogram set on a finished label come from the whole classification — the most severe endpoint drives the signal word, so a milder statement can be present without changing an already-Danger label.
Related statements — Aspiration hazard
Classifying a mixture for this hazard? Try the free Health hazard (sum-of-parts) calculator — it runs the GHS math for you, nothing stored.
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Reference information, not a compliance determination. Actual label elements depend on the full classification of your specific substance or mixture and require review by a qualified professional.