Aerosol Spray (General)
Non-flammable personal-care aerosols follow the liquids rule; flammable aerosols are far more restricted.
Carry-on
Allowed with conditions
Checked
Allowed with conditions
Carry-on details
Allowed with conditions. Personal-care aerosols (like hairspray or deodorant spray) follow the standard 3.4 oz liquids rule in carry-on. Flammable aerosols (like spray paint) are generally not allowed in carry-on at all.
Checked-bag details
Allowed with conditions for personal-care aerosols, generally capped around 500 mL (about 18 oz) per container with the nozzle protected. Flammable aerosols are prohibited in checked baggage as well.
Quantity limit
3.4 oz (per container)
Special instructions
This entry covers non-flammable personal-care aerosols only. Flammable aerosols (spray paint, some lubricants) are treated as hazardous materials and are typically prohibited entirely — check the specific product before packing it.
Related rules
FAQ
- Are all aerosol cans treated the same?
- No — non-flammable personal-care aerosols like deodorant and hairspray follow the standard liquids rule. Flammable aerosols such as spray paint are treated as hazardous materials and are generally not allowed at all.
Related items
Source: TSA — What Can I Bring? · Last verified: 2026-07-29
Final decision rests with the security officer at the checkpoint.