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Yes, ice skates are permitted in carry-on luggage under TSA rules, though detachable blades must be packed in checked baggage.

The TSA permits ice skates in carry-on bags for U.S. flights, but Canada’s CATSA requires detachable blades to be packed in checked luggage.

Yes, you can bring gel ice packs through TSA checkpoints in carry-on or checked bags, but they must be completely frozen solid if carried past.

Yes, but only if frozen completely solid; partially melted gel packs count toward the 3.4-ounce (100 ml) carry-on liquid limit.

Yes, you can bring ice packs in carry-on luggage, but they must be frozen solid when presented for screening.

Yes, you can bring a gel ice pack in carry-on if it is completely frozen solid at screening, or if it is medically necessary regardless of its state.

Yes, you can bring hygiene products on a plane. Liquids, gels, and aerosols must follow the TSA 3-1-1 rule for carry-ons.

Yes, you can generally bring a hydrogen water bottle on a plane in carry-on luggage if the lithium-ion battery is under 100 watt-hours.

Hydrogen peroxide in carry-on must follow the TSA 3-1-1 rule: containers 3.4 ounces (100 ml) or less, all fitting in a single quart-sized clear bag.

Yes, the TSA explicitly allows HotHands and similar disposable chemical hand warmers in both carry-on and checked luggage on US domestic flights.