1. Introducción
Thank you for choosing the KOIOS 4L Top Fill Ultrasonic Cool Mist Humidifier. This device is designed to improve air quality and comfort in your home by adding moisture to the air and can also function as an essential oil diffuser. Please read this manual thoroughly before operation to ensure proper use, maintenance, and safety.

Image: The KOIOS 4L Top Fill Ultrasonic Cool Mist Humidifier, showcasing its sleek design and water level.
2. Instrucciones de seguridad importantes
Para reducir el riesgo de incendio, descarga eléctrica o lesiones, siga siempre estas precauciones básicas:
- Lea todas las instrucciones antes de utilizar el humidificador.
- Coloque siempre el humidificador sobre una superficie firme, plana e impermeable, al menos a 30 cm (12 pulgadas) de distancia de las paredes y los electrodomésticos.
- No coloque el humidificador cerca de fuentes de calor como estufas, radiadores o luz solar directa.
- Desenchufe el humidificador del tomacorriente antes de llenarlo, limpiarlo o moverlo.
- Do not immerse the power cord, plug, or the main humidification unit in water or other liquids.
- Prevent water from entering the power hole and the internal chip. The humidification unit contains sensitive electronic components; do not put it upside down or soak it in water to clean it.
- Ensure the connection between the humidification unit and the water bucket is secure using the elastic buckle to prevent the unit from floating.
- Mantener fuera del alcance de los niños y las mascotas.
- Use only clean, cool tap water. Distilled water is recommended to minimize mineral buildup.
- No agregue aceites esenciales directamente al tanque de agua; utilice la bandeja designada para aceites esenciales.
3. Componentes del producto
Familiarize yourself with the parts of your KOIOS humidifier:
- Top Fill Lid
- Humidification Unit (with mist nozzle and control panel)
- Water Bucket/Tank (4L capacity)
- Bandeja de aceite esencial
- Cable de alimentación
- Manual de instrucciones

Image: An exploded diagram showing the main components of the humidifier, including the top fill lid, humidification unit, and water tank.
4. Configuración
- Deshacer: Retire con cuidado todos los materiales de embalaje y coloque el humidificador sobre una superficie plana y estable.
- Llena el tanque de agua: Remove the top fill lid. Pour clean, cool water directly into the water tank. Do not exceed the maximum fill line.

Image: A hand pouring water into the top of the KOIOS humidifier, demonstrating the easy top-fill design.
- Añadir aceites esenciales (opcional): If desired, add a few drops of essential oil to the designated essential oil tray. Do not add oils directly into the water tank.

Image: A hand carefully adding essential oil drops into the small, designated tray on the humidifier's top unit.
- Secure Humidification Unit: Ensure the humidification unit is properly seated and the elastic buckle is fastened to prevent it from floating.
- Conecte la electricidad: Conecte el cable de alimentación a una toma eléctrica adecuada.
5. Instrucciones de funcionamiento
Your KOIOS humidifier features simple controls for ease of use.
Encendido/apagado
- Press the power button once to turn the humidifier on.
- Press the power button again to cycle through mist settings or turn off.
Mist Output Adjustment
The humidifier offers three mist output levels: High (H), Medium (M), and Low (L).
- Alto (H): Provides 350-380mL/h mist output for 12-13 hours runtime.
- Mediano (M): Provides 240-270mL/h mist output for 15-16 hours runtime.
- Bajo (L): Provides 240-270mL/h mist output for 29-31 hours runtime. In this setting, the humidifier will run for 18 seconds and then pause for 18 seconds.

Image: Visual representation of the three mist output settings (H, M, L) with corresponding mist intensity and runtime.
Función de luz nocturna
- To turn the night light on or off, press and hold the power button for 3 seconds.

Image: The humidifier operating with a gentle blue night light, indicating quiet operation (less than 30dB).
6. Mantenimiento y limpieza
La limpieza regular es esencial para un rendimiento óptimo y una higiene óptima. Desenchufe siempre el humidificador antes de limpiarlo.
Mantenimiento diario
- Empty the water tank and essential oil tray daily.
- Wipe down the inside of the water tank and the humidification unit with a clean cloth.
Thorough Cleaning (Weekly or as needed)
The innovative design allows for thorough cleaning, especially important if using essential oils.
- Desmontar: Open the buckles on both sides of the humidification unit. Separate the humidification unit from its cover.
- Componentes limpios: All parts that come into contact with water or mist can be easily cleaned. Use a soft brush or cloth and a mild descaling solution (e.g., white vinegar) to remove mineral buildup from the transducer and other surfaces. Rinse thoroughly with clean water.
- Volver a montar: Ensure all parts are dry before reassembling. Secure the humidification unit and its cover, ensuring the buckles click into place.

Image: A step-by-step visual guide demonstrating how to open the buckles, separate the humidification unit, and clean its internal components.
Importante: Do not immerse the main humidification unit (the top part with controls and power connection) in water. Only clean the detachable components that are designed to be washed.
7. Solución de problemas
Si tiene problemas con su humidificador, consulte los siguientes problemas y soluciones comunes:
| Problema | Posible causa | Solución |
|---|---|---|
| Sin niebla o con poca niebla | Falta de agua Acumulación de minerales en el transductor Humidification unit not properly seated | Rellenar el tanque de agua Clean the transducer and humidification unit (refer to Maintenance section) Ensure the humidification unit is securely buckled to the water tank. |
| Fuga de agua | Humidification unit not properly seated Llenar demasiado el tanque de agua Unidad colocada sobre una superficie irregular | Ensure the humidification unit is securely buckled No llene de agua por encima de la línea MAX Coloque el humidificador sobre una superficie plana y estable. |
| Ruido inusual | La unidad no está sobre una superficie plana El nivel del agua es demasiado bajo Foreign object in the fan area | Colocar sobre una superficie plana Rellenar el tanque de agua Unplug and check for obstructions (do not force). |
| La luz nocturna no funciona | No activado correctamente | Press and hold the power button for 3 seconds to toggle the night light. |
If the problem persists after trying these solutions, please contact KOIOS customer support for assistance.
8. Especificaciones
- Marca: KOIOS
- Modelo: B09SHM9R4M
- Capacidad: 4 litros (1.06 galones)
- Salida de niebla: Hasta 380 mL / h
- Duración: Up to 31 hours (on Low setting)
- Modo de operación: Ultrasónico, Vaporizador
- Características especiales: Humidifier & Essential Oil Diffuser 2-in-1, Night Light, Top-Fill Design
- Nivel de ruido: Menos de 30dB
- Dimensiones del producto: 7" de profundidad x 7" de ancho x 11" de alto
- Peso del artículo: 2.86 libras
- Volumentage: 120 voltios (CA)

Image: A diagram illustrating the dimensions of the humidifier: 7 inches (D) x 7 inches (W) x 11 inches (H).
9. Garantía y soporte
KOIOS products are manufactured to high-quality standards. For any questions, concerns, or warranty inquiries, please contact KOIOS customer support. Please have your model number (B09SHM9R4M) and purchase information ready when contacting support.
For further assistance, please visit the official KOIOS store or contact their customer service channels.





