A humidifier is a device that converts water into fine mist or steam-utilizing technologies such as ultrasonic high-frequency oscillation, cold evaporation, or thermal evaporation-thereby increasing the humidity of the air. These devices are primarily categorized into three main types: ultrasonic (mist-generating), evaporative (cold evaporation/mist-free), and thermal. Effectively alleviating dry environmental conditions, humidifiers are widely utilized across various sectors, including homes, offices, healthcare facilities, and industrial settings.
Since entering the Chinese market in the 1990s, the range of applications for humidifiers has steadily expanded, with the technology progressively evolving toward greater intelligence and health-oriented features (such as UV sterilization and intelligent constant-humidity control). To ensure optimal performance and safeguard health, users are advised to observe several precautions: perform regular cleaning, maintain indoor humidity levels within a recommended range (typically 40%–60%), and use purified water.
