If you find the air too dry when you're going to bed, on a plane, etc. try using Kao Gentle Steam Masks! They generate a warm and comfortable heat that helps to get rid of any dryness in your nasal passages. The heat goes up to about 40° C and lasts for about 15 minutes. It's easy and convenient. Every box holds three pieces. 

How to use:

Tear off along the dotted line on the back of the mask. Wear the mask. Gradually, you will feel warmth. Wait for 10 -15 minutes before taking it off.

Material:

Polypropylene, PET, aluminum