A steam inhaler is a device designed to deliver warm, moist air directly to the respiratory system. It typically consists of a water reservoir that heats water to produce steam, which is then inhaled through a mask or mouthpiece. This can help relieve symptoms of congestion, sinusitis, and other respiratory issues by moisturizing the airways and loosening mucus. Using a steam inhaler can be beneficial for individuals suffering from conditions like asthma, allergies, or the common cold. The warm steam can soothe irritated tissues in the nose and throat, making it easier to breathe. However, it is important to follow the manufacturer's instructions for safe use.