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Yes, on most airlines you can bring one carry-on plus one personal item; some basic fares only allow one small underseat bag.

Yes, you can bring two perfumes on a plane; keep each bottle at 100 ml or less in your quart bag, and place larger bottles in checked bags.

Yes. 70% isopropyl alcohol is allowed: carry-on up to 3.4 oz (100 ml) per bottle; checked bags up to 500 ml each, with a 2 L total per person.

Yes—on U.S./Canada routes you get 2 checked bags; on other routes, two bags are fine if your total stays within your fare’s kg limit.

No — 4 oz hair gel is over the carry-on limit. Use up to 3.4 oz (100 ml) in your quart bag, or put the 4 oz in checked luggage.

No, 4.2-oz toothpaste can’t go in carry-on; put it in checked bags or carry travel-size (3.4 oz/100 ml) inside your quart bag.

Yes — you can bring an 18W battery or charger. For lithium power banks, keep it in carry-on and under 100 Wh, or get airline approval up to 160 Wh.

Yes — on many airlines you can check two bags, but the allowance, size, weight, and any fees depend on your fare, route, and carrier policy.

No. Most airlines include one personal item with a carry-on; swapping in a second personal item is usually not allowed, and rules vary by carrier.

Yes, a 50/60Hz wall charger is allowed on Copa flights; pack it in carry-on or checked. Power banks and spare lithium cells go in carry-on only.