Can I take a travel humidifier on a plane?

Yes, as long as the water tank is empty. The humidifier itself has no restrictions. Rechargeable models with lithium batteries are carry-on only — they cannot go in checked luggage per TSA rules.

Do travel humidifiers actually make a difference?

Absolutely. Hotel rooms often sit at 15-25% humidity, well below the 30-50% comfort zone. Even a small travel humidifier can raise bedside humidity enough to prevent dry throat, nosebleeds, and cracked lips overnight.

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