🌸 Air freshener spray

A standard household aerosol air freshener over 100ml will be confiscated at the carry-on checkpoint. Aerosols are treated as liquids and gels under the 100ml rule, so screeners will not make an exception for size. You can bring a travel-size aerosol of 100ml or less in your quart-sized liquids bag, or pack the full-size can in your checked luggage.

The 100ml aerosol rule in carry-on is consistent across the US, UK, EU, Canada, and Australia — all apply the same limit. The additional checked-baggage rule requiring the cap to be secured to prevent accidental discharge is also a widely adopted standard rather than a single-country quirk. There are no regions that take a notably more lenient or stricter approach to air freshener aerosols specifically.

No — the X-ray and rule applied at the checkpoint are identical for all aerosol products, whether they are air fresheners, deodorants, or hairsprays. If it is an aerosol and it is over 100ml, it will not pass in carry-on. The type of aerosol product does not affect the outcome.

Make sure the protective cap is firmly in place on the nozzle before packing — this prevents accidental discharge in the hold, which is the main airline concern for aerosols in checked bags. Wrap the can in a zip-lock bag as a secondary precaution in case the cap shifts. Standard household air freshener aerosols are not classified as hazardous goods, so there are no quantity restrictions in checked baggage beyond what your airline allows for total weight.