Reusable inhalers are an excellent way to take aromatherapy with you anywhere you go! They have a glass tube inside that holds a cotton wick. Drops of essential oil go onto the cotton wick, which you place inside the glass tube. You then put the inhaler cap on the glass tube, insert the glass tube into the aluminum case and put the case lid on...and you're ready to go! 

Aluminum Inhaler - Reusable Inhaler