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Can I Carry It? — verified carry-on guide

飛行機にAerosols (Hair Spray, Dry Shampoo)を持ち込める？

洗面用具・化粧品

要約結論
機内持込: ⚠ 条件付き 受託手荷物: ✓ 可能

条件付きで可能 — Aerosolsは航空保安基準の制限内で機内持ち込みが可能です。 Carry-on: ≤ 3.4 oz (100 ml) per can, in the liquids bag, cap on.

  • · Carry-on: ≤ 3.4 oz (100 ml) per can, in the liquids bag, cap on
  • · Checked: ≤ 18 oz (500 ml) per can
  • · Checked total: ≤ 70 oz (2 L) of aerosol/toiletry articles per person
  • · Spray paint is NOT a toiletry — banned in both bags
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💧 3-1-1 liquids rule checker

One quart-size (≈1 L) bag per passenger; every container must be 3.4 oz (100 ml) or less.

Fit is approximate — container shape decides real-world packing. Medically necessary liquids and infant food are exempt: declare them.

航空保安当局別の公式規定

Rules by security authority

United States — TSA

機内持込:

条件付き

Yes, travel-size aerosol toiletries (≤ 3.4 oz / 100 ml) are fine in your quart-size bag. Keep the cap on to prevent accidental release.

受託手荷物:

可能

Yes, under FAA limits: each aerosol ≤ 18 oz (500 ml), and a combined total of 70 oz (2 L) of toiletry/medicinal aerosols per person.

Rule conditions: Carry-on: ≤ 3.4 oz (100 ml) per can, in the liquids bag, cap onChecked: ≤ 18 oz (500 ml) per canChecked total: ≤ 70 oz (2 L) of aerosol/toiletry articles per personSpray paint is NOT a toiletry — banned in both bags

Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.

Aerosols (Hair Spray, Dry Shampoo)のパッキング注意点

機内持ち込み手荷物: Yes, travel-size aerosol toiletries (≤ 3.4 oz / 100 ml) are fine in your quart-size bag. Keep the cap on to prevent accidental release.

受託手荷物（預け荷物）: Yes, under FAA limits: each aerosol ≤ 18 oz (500 ml), and a combined total of 70 oz (2 L) of toiletry/medicinal aerosols per person.

保安検査場での最終的な持ち込み可否判断は、現場の保安検査員に委ねられます。

よくある質問 (FAQ)

Frequently asked questions

Can you bring Aerosol Toiletries in a carry-on?

Yes, travel-size aerosol toiletries (≤ 3.4 oz / 100 ml) are fine in your quart-size bag. Keep the cap on to prevent accidental release.

Can you pack Aerosol Toiletries in checked luggage?

Yes, under FAA limits: each aerosol ≤ 18 oz (500 ml), and a combined total of 70 oz (2 L) of toiletry/medicinal aerosols per person.

Can I bring dry shampoo on a plane?

Yes — aerosol dry shampoo follows the liquid rules: 3.4 oz or less in your liquids bag for carry-on, bigger cans in checked luggage within the FAA aerosol limits (≤ 18 oz each, 70 oz total).

Last verified:

Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →