●4L foldable humidity: portable, easy to carry when travelling and store for seasonal change, capacity supports up to 26 hours of humidification. Cool mist humidifier helps relieve symptoms such as nasal congestion, dry skin and cough. ●Night light + constant humidity + timer: multifunctional collection in one device. 4-8-12 hours timer selection. ●✨Humidity < 45%:Orange ||45% ≤ Humidity < 55%: Green ||55% ≤ Humidity < 65%:Blue ||Humidity ≥ 65%:Blue ●🌈*[360° rotating nozzle]: electronic touch screen for quiet all-round humidification. Bear humidifiers reduce noise level to 28dB. ●✔️*[Automatic Shut-Off Protection]: Automatically stops working when the water runs out, the deficiency indicator lights up red as a warning to protect the machine for a longer service life. ●BPA free, essential oil container at the bottom: special gift for family and friends. BPA free material, safe to use. In the essential oil container at the bottom, you can add your favourite aromatherapy and enjoy the pleasant fragrance experience. Note: Please do not put essential oils into the water tank.