There may be links between symptoms of asthma and humidity. Humidity is a measure of how much moisture there is in the air. Many people with asthma find that humid weather makes their symptoms worse.

Humidifiers are devices that release steam or water vapor into the air to increase humidity. Humidity refers to the amount of water vapor in the air. It can play a role in both the development and ...

Weather that’s too humid or not humid enough can make it harder to breathe when you have chronic obstructive pulmonary disease (COPD), a lung disease that gets worse over time. Changes in humidity and ...