4.5L Automatic Humidifier for Bedroom, Cool Mist, Humidity Sensor | Up to 40H on Low, Quiet Operation, Auto-Off Display, 3 Mist Levels, 1-12H Timer, Filter-Free, Low-Water Auto Off, 360° Nozzle

Bring lasting moisture to dry bedroom air with the ROSEKM 4.5L automatic cool mist humidifier. Its 1.2-gallon tank runs for up to 40 hours on low or 18 hours on high, helping you spend less time refilling. With up to 250 mL/h mist output and coverage up to 430 sq ft, it fits bedrooms, nurseries and home offices, and adds moisture to the air around indoor plants. Auto Mode follows factory-set humidity thresholds rather than a percentage you choose. Its built-in sensor adjusts mist as humidity rises: high mist below 45% RH, then reduced output at higher levels, with misting stopped after 5 minutes above 80% RH. The display shows current humidity in Auto Mode. For hands-on control, choose low, medium or high mist and turn the 360° nozzle to direct the flow. Quiet operation below 26 dB suits your bedtime routine. After 3 minutes without a touch, the display turns off completely, removing screen light from the room. Choose a 1-12 hour shut-off timer to fit your evening or daily schedule. The humidifier also shuts off when water runs low. The removable tank fills from the bottom: lift off the top cover before inverting the tank and opening the screw cap. Use clean, cool water only; distilled or purified water is recommended. Do not add essential oils. Place the unit on a firm, flat, water-resistant surface, at least 2 feet above the floor and 12 inches from walls, with the bottom air intake clear. There are no replacement filters to buy. Clean weekly with the included brush and follow the care instructions. The box includes one humidifier, one cleaning brush and one user manual.