1. Introdução
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. Instruções importantes de segurança
Para reduzir o risco de incêndio, choque elétrico ou ferimentos, siga sempre estas precauções básicas:
- Leia todas as instruções antes de usar o umidificador.
- Sempre coloque o umidificador em uma superfície firme, plana e impermeável, a pelo menos 30 cm (12 polegadas) de distância de paredes e eletrodomésticos.
- Não coloque o umidificador perto de fontes de calor, como fogões, radiadores ou sob luz solar direta.
- Desligue o humidificador da tomada antes de enchê-lo, limpá-lo ou movê-lo.
- 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.
- Mantenha fora do alcance de crianças e animais de estimação.
- Use only clean, cool tap water. Distilled water is recommended to minimize mineral buildup.
- Do not add essential oils directly into the water tank; use the designated essential oil tray.
3. Componentes do produto
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 óleo essencial
- Cabo de alimentação
- Manual de instruções

Image: An exploded diagram showing the main components of the humidifier, including the top fill lid, humidification unit, and water tank.
4. Configuração
- Descompacte: Remova cuidadosamente todos os materiais de embalagem e coloque o umidificador sobre uma superfície plana e estável.
- Encha o tanque de água: 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.
- Adicione óleos essenciais (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 a energia: Conecte o cabo de alimentação a uma tomada elétrica adequada.
5. Instruções de operação
Your KOIOS humidifier features simple controls for ease of use.
Ligar/Desligar
- 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.
- Médio (M): Provides 240-270mL/h mist output for 15-16 hours runtime.
- Baixo (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.
Função Luz Noturna
- 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. Manutenção e Limpeza
A limpeza regular é essencial para o desempenho ideal e a higiene. Desligue sempre o humidificador da tomada antes de o limpar.
Manutenção diária
- 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 limpos: 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.
- Remontar: 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. Solução De Problemas
Caso encontre problemas com seu umidificador, consulte os problemas e soluções comuns a seguir:
| Problema | Possível causa | Solução |
|---|---|---|
| Sem névoa ou com baixa emissão de névoa. | Falta de água Acúmulo de minerais no transdutor Humidification unit not properly seated | Reabastecer o tanque de água Clean the transducer and humidification unit (refer to Maintenance section) Ensure the humidification unit is securely buckled to the water tank. |
| Vazamento de água | Humidification unit not properly seated Overfilling the water tank Unidade colocada em uma superfície irregular | Ensure the humidification unit is securely buckled Do not fill water above the MAX line Coloque o umidificador sobre uma superfície plana e estável. |
| Ruído incomum | Unidade não em uma superfície plana Nível de água muito baixo Foreign object in the fan area | Coloque em uma superfície plana Reabastecer o tanque de água Unplug and check for obstructions (do not force). |
| A luz noturna não funciona | Não ativado corretamente | 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. Especificações
- Marca: KOIOS
- Modelo: B09SHM9R4M
- Capacidade: 4 litros (1.06 galões)
- Saída de névoa: Até 380 mL / h
- Tempo de execução: Up to 31 hours (on Low setting)
- Modo de operação: Ultrassônico, Vaporizador
- Características especiais: Humidifier & Essential Oil Diffuser 2-in-1, Night Light, Top-Fill Design
- Nível de ruído: Menos de 30dB
- Dimensões do produto: 7"P x 7"L x 11"A
- Peso do item: 2.86 libras
- Volumetage: 120 Volts (CA)

Image: A diagram illustrating the dimensions of the humidifier: 7 inches (D) x 7 inches (W) x 11 inches (H).
9. Garantia e Suporte
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.





