5L tank provides up to 36 hours of moisture without the need to refill,and the modular design is easy to remove and install, giving you a hassle-free cleaning experience. Create a perfect sleep sanctuary with an ultra-quiet operation as low as 28dB—quieter than a whisper. Smart Humidifiers with three mist levels (wet, comfort, dry) to suit any need, from gently hydrating delicate plants to providing robust moisture for large bedrooms.