[Description] Space Saving Design: Vertical oval, shape designed for bedroom stonge nightstand and office desk, fitting narrow space for Stonego better air wherever you are. Whisper-Quiet Operation: This cool mist humidifiers can be used at night without sound of water gurgle or fan noise. Dial Knob Control: Selecting the mist output conveniently for full control of the air you breathe. Features: Smart LED indicator, and auto shut-off when water is run out and tank lifted up, surrounding you with clean air evenly and safely. Safely moisturizes the air for up to 8 hours of continuous operation so you can breathe easy and get more restful sleep. Size: 13.7x7.8cm Water capacity: 280ml Spray: 30-40ML / H Noise: 30dB Tips: Before use, fully immerse the filter cotton in water for 2 minutes. If you use essential oil for a long time, please clean the water tank regularly and filter it regularly.