Ultrasonic humidifiers represent 38.2% of humidifier type sales in 2026. The humidifier market is estimated at USD 4.05 billion in 2026, is projected to reach USD 7.54 billion by 2036 and is forecast to post a 6.4% CAGR between 2026 and 2036, creating an incremental opportunity of USD 3.48 billion.