Benefits of using a steam inhaler:

• Relieving congestion: Steam can help to loosen mucus and phlegm in the airways, which can help to relieve congestion. 
• Loosening phlegm: Steam can help to loosen phlegm in the airways, which can make it easier to cough up.
• Moisturising the airways: Steam can help to moisturise the airways, which can help to soothe a sore throat and make it easier to breathe. 

The directions for use state: For the inhalation of the vapours of Hot Water the water should be Boiling and the Inhaler not more than half filled. When infusions are required the ingredients should be placed in the Inhaler and Boiling Water poured upon them. Volatile and other liquids should be added to the Boiling Water.