Fireworks, crackers: not allowed at all
Smoke markers (flares) too: neither carry-on nor checked, domestic or international
Bleach, paint, insecticides: not at all
Same for chlorine-based detergents, adhesives, gasoline and kerosene
Household detergents, aroma oil: allowed
0.5L (kg) or less per container; up to 2L (kg) per person with medicines and spray cans
International flights: 100ml (3.4 oz) rule too
They are liquids: the 100ml (3.4 oz) / clear bag rule applies when carried on board
Items marked "Not allowed" in tables 1 and 2 can be neither carried on board nor checked, on domestic or international flights.
| Item | Carry-on baggage | Checked baggage |
|---|---|---|
| Fireworks | Not allowed | Not allowed |
| Crackers | Not allowed | Not allowed |
| Smoke markers (flares) | Not allowed | Not allowed |
| Cartridge case key chains and necklaces (made into accessories) | Allowed | Allowed |
Source
Source: MLIT: "Examples of Dangerous Goods by Air Transportation" (English version, last updated April 24, 2026) (retrieved 2026-09-27)
| Item | Carry-on baggage | Checked baggage |
|---|---|---|
| Bleach, heavy-duty mold removers | Not allowed | Not allowed |
| Detergents labeled "chlorine-based" or "dangerous if mixed" | Not allowed | Not allowed |
| Paint, varnish, thinner, benzine | Not allowed | Not allowed |
| Adhesives | Not allowed | Not allowed |
| Insecticides, smoke-type insecticides, agricultural chemicals | Not allowed | Not allowed |
| Gasoline, kerosene, gas oil | Not allowed | Not allowed |
| Hydrochloric acid, sulfuric acid, ethanol, formalin, chloroform | Not allowed | Not allowed |
Source
Source: MLIT: "Examples of Dangerous Goods by Air Transportation" (English version, last updated April 24, 2026) (retrieved 2026-09-27)
| Item | Carry-on baggage | Checked baggage |
|---|---|---|
| Household detergents (other than bleach and mold removers) | Allowed | Allowed |
| Cleaning solutions (for contact lenses, false teeth, eyeglasses, etc.) | Allowed | Allowed |
| Aroma oil | Allowed | Allowed |
| Musical instrument oil (lubricating oil) | Allowed | Allowed |
- Household detergents, cleaning solutions and aroma oil are treated as toiletries: 0.5L (kg) or less per container, and up to 2L (kg) per person together with medicines and spray cans.
- All of them are liquids, so on international flights the 100ml / clear bag rule also applies when you carry them on board (Liquid rules on flights). The document says to see the toiletries and medicines sections for disinfectant and sanitizing products.
- For insect repellent sprays you put on your skin, see Spray cans.
Source
Source: MLIT: "Examples of Dangerous Goods by Air Transportation" (English version, last updated April 24, 2026) (retrieved 2026-09-27)
Some airlines have stricter rules. On international flights, rules of other countries' authorities may also apply.