GHS hazard statement
H305
May be harmful if swallowed and enters airways
- Hazard group
- Health hazards
- Hazard class
- Aspiration hazard
- Signal word
- None assigned
What H305 means
H305 is the GHS (Globally Harmonized System) hazard statement “May be harmful if swallowed and enters airways.” 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.
H305 is a lower-tier statement to which GHS assigns no pictogram or signal word on its own. It still communicates a real hazard and belongs on the SDS and label where the criteria are met.
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.
Stop looking up codes by hand
GHSLogic reads the hazard and precautionary statements straight off your supplier SDSs, classifies the whole mixture across every GHS endpoint, and drafts a review-ready SDS and labels.
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.