1. Introduction
Thank you for choosing the Proscenic Ultenic H8 Smart Warm and Cool Mist Ultrasonic Humidifier. This manual provides essential information for the safe operation, maintenance, and troubleshooting of your device. Please read it thoroughly before use and retain it for future reference.
The Ultenic H8 humidifier is designed to improve air quality and comfort in your home by providing both warm and cool mist options. It features a large 4.3L water tank, smart app control, and an LED touch screen for convenient operation.
2. Important Safety Instructions
- Always place the humidifier on a firm, flat, water-resistant surface away from direct sunlight and heat sources.
- Do not place the humidifier near furniture or appliances that are sensitive to moisture.
- Ensure the power cord is not damaged and is placed safely to prevent tripping hazards.
- Unplug the humidifier before filling, cleaning, or moving it.
- Do not immerse the base unit in water or other liquids.
- Keep out of reach of children and pets.
- Use only clean, cool tap water. Distilled or demineralized water is recommended to prevent mineral buildup.
- Do not add essential oils directly into the water tank; use the designated aroma box.
- Do not block the mist outlet.
- If the humidifier emits unusual sounds, smells, or smoke, unplug it immediately and contact customer support.
3. Product Overview
Familiarize yourself with the components of your Ultenic H8 humidifier:
- Mist Outlet: Where the mist is dispersed.
- Water Tank: 4.3L capacity for water.
- Base Unit: Contains the ultrasonic transducer and heating element.
- Control Panel/LED Display: For manual operation and status display.
- Aroma Box: For adding essential oils (do not add directly to water tank).
- Power Cord: Connects to an electrical outlet.
- Remote Control: For convenient operation from a distance.

Image: The Ultenic H8 humidifier showcasing its top-filling design and the integrated aroma box. The image highlights the ease of refilling the 4.3L detachable water tank without leakage and provides a note to use the aroma box for essential oils instead of adding them directly to the water.
4. Setup
4.1 Initial Placement
- Unpack the humidifier and all accessories.
- Place the humidifier on a flat, stable surface at least 6 inches (15 cm) away from walls and other objects.
- Ensure the power cord is easily accessible and not obstructed.
4.2 Filling the Water Tank
- Remove the top cover of the humidifier.
- Fill the 4.3L water tank directly from the top opening with clean, cool tap water. For best results and to prevent mineral buildup, use distilled or demineralized water.
- Do not fill past the MAX water level indicator.
- Replace the top cover securely.
4.3 Power Connection
Plug the power cord into a standard electrical outlet. The humidifier will enter standby mode.
5. Operating Instructions
5.1 Control Panel Operation
The LED touch screen allows for easy adjustment of settings and displays real-time humidity levels.

Image: Close-up of the Ultenic H8 humidifier's LED touch screen control panel. The image illustrates various touch buttons for functions such as Turn On/Off, Timer, Constant Humidity, Baby Mode, Mist Level Adjustment, and Plasma Mode, along with the digital display showing humidity and temperature.
- Power Button: Press to turn the humidifier On/Off.
- Mist Level Adjustment: Cycle through different mist output levels.
- Constant Humidity Mode: Set a desired humidity level; the humidifier will automatically adjust output to maintain it.
- Warm Mist/Cool Mist: Select between warm or cool mist output.
- Baby Mode: Optimized settings for a baby's room.
- Plasma Mode: Activates the plasma function for air purification.
- Night Light: Turn the integrated night light On/Off.
- Timer: Set an operating duration (e.g., 1-12 hours).
5.2 Smart APP Control
Download the Ultenic app from your smartphone's app store to control your humidifier remotely and access additional features.

Image: The Ultenic H8 humidifier with a smartphone displaying the smart app interface and an Amazon Echo device. The image highlights features like Alexa & Google Home voice control, Baby Mode, Warm Mist, 3-Levels Mist, Timer, Night Light, and Schedule, all controllable via the app.
- Download the App: Search for "Ultenic" in the App Store (iOS) or Google Play Store (Android).
- Register/Log In: Create an account or log in if you already have one.
- Add Device: Follow the in-app instructions to add your H8 humidifier. Ensure your phone is connected to a 2.4GHz Wi-Fi network during setup.
- Control Features:
- Remote On/Off
- Adjust mist levels and modes (Warm/Cool, Baby Mode, Constant Humidity, Plasma)
- Set schedules and timers
- Control night light
- Monitor indoor temperature and humidity
- Voice control integration with Alexa and Google Home (requires separate setup within their respective apps).
5.3 Mist Output and Coverage

Image: The Ultenic H8 humidifier demonstrating its 360° effective coverage, providing continuous mist for rooms up to 50m² (323 ft²). The image visually separates warm mist (balancing heated air in winter) and cool mist (keeping skin hydrated in hot & dry weather) functions.
The H8 humidifier offers 360° effective coverage, suitable for rooms up to 50m² (323 ft²), providing up to 30 hours of continuous mist. Choose between warm mist to balance heated air in winter or cool mist for hydration in hot and dry weather.
6. Maintenance
Regular cleaning and maintenance are crucial for optimal performance and longevity of your humidifier.
6.1 Daily Maintenance
- Empty any remaining water from the tank and base unit daily.
- Rinse the water tank and base unit with fresh water.
- Refill with fresh, clean water before each use.
6.2 Weekly Cleaning
- Unplug: Always unplug the humidifier before cleaning.
- Empty Water: Empty all water from the tank and base unit.
- Clean Water Tank:
- Remove the water tank.
- Wipe the inside of the tank with a soft cloth.
- For mineral buildup, fill the tank with a mixture of 1 teaspoon of white vinegar and 1 gallon of water. Let it stand for 30 minutes, then rinse thoroughly.
- Clean Base Unit:
- Gently wipe the surface of the ultrasonic transducer (the small disc in the center of the base) with a soft brush or cloth. Do not scrape.
- Clean the heating element (if applicable) and other internal surfaces with a soft, damp cloth.
- Do not immerse the base unit in water.
- Rinse and Dry: Rinse all parts thoroughly with clean water and allow them to air dry completely before reassembling.
6.3 Storage
If the humidifier will not be used for an extended period, clean it thoroughly as described above, ensure all parts are dry, and store it in a cool, dry place.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
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| Unusual odor |
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| "EF" error message on display |
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| Humidifier not connecting to Wi-Fi/App |
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8. Specifications
| Brand | Proscenic |
| Model Name | H8 (Cool Mist Ultrasonic) |
| Operation Mode | Ultrasonic |
| Capacity | 4.3 Liters |
| Special Features | Night Light, Quiet Operation (less than 30dB), Remote Control, Smart APP Control (Warm and Cool Mist) |
| Room Type | Bedroom (suitable for up to 50m² / 323 ft²) |
| Product Dimensions | 9.84 x 9.45 x 13.78 inches |
| Item Weight | 8.33 pounds |
| Included Components | Cleaning Brush, Instruction Manual |

Image: The Ultenic H8 humidifier operating quietly in a bedroom setting, with a person sleeping peacefully. The image emphasizes its ultra-quiet operation (less than 30dB) and the presence of a night light that can be turned off.
9. Warranty and Support
Proscenic products are manufactured to the highest quality standards. For detailed warranty information, please refer to the warranty card included with your purchase or visit the official Proscenic website.
If you encounter any issues or have questions regarding your Ultenic H8 humidifier, please contact Proscenic Customer Support for assistance. Contact details can typically be found on the product packaging, warranty card, or the official website.





