Wolaid Steam Inhaler is extremely good at relieving sinus inflammation and congestion, alleviating dry mucous membrane symptoms, and keeping your nasal passage wet and clean. This is an easy approach to provide quick and natural treatment to anyone suffering from colds, congestion, laryngitis, or allergies. It delivers the ideal quantity of humidity in the upper respiratory area. When you breath steam, it relaxes your muscles and soothes coughing to some extent. It moistens dry nasal passages and loosens heavy mucous, allowing congestion to drain more easily.