RAM Ultrasonic Humidifier – 5L & 13L Tank Options
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Adjustable Cool-Mist Humidity Control for Indoor Growing
The RAM Ultrasonic Humidifier is designed to increase and maintain moisture levels in indoor growing environments. Its ultrasonic system produces a fine cool mist, helping to counteract the dry conditions that can be created by extraction fans, grow lights and other climate-control equipment.
Available with either a compact 5-litre tank or a higher-capacity 13-litre tank, the humidifier provides adjustable analogue output for straightforward control. The 5L model delivers up to 400 mL of mist per hour, while the more powerful 13L model delivers up to 1,100 mL per hour.
Key Features & Benefits
- Ultrasonic cool-mist operation for indoor growing environments
- Helps increase relative humidity when ventilation equipment creates dry conditions
- Adjustable analogue control for regulating mist output
- Choice of 5L or 13L water tank
- 5L model delivers up to 400 mL of mist per hour
- 13L model delivers up to 1,100 mL of mist per hour
- Low operating noise of no more than 35 dB(A), according to the published specifications
- Suitable for grow tents, indoor gardens, propagation areas and controlled horticultural spaces
Choose the Correct Tank Size
The 5L RAM Ultrasonic Humidifier is a compact 30W model suited to smaller indoor growing environments. Its adjustable output reaches up to 400 mL per hour.
The 13L RAM Ultrasonic Humidifier provides a higher maximum output of 1,100 mL per hour. It has four adjustable nozzles and one additional outlet to help distribute mist across a larger growing area. An automatic cut-off function protects the 13L unit when its water tank becomes empty.
Technical Specifications
| Specification | 5L Model | 13L Model |
|---|---|---|
| Tank capacity | 5 litres | 13 litres |
| Maximum mist output | 400 mL per hour | 1,100 mL per hour |
| Rated power | 30W | 85W |
| Power supply | 220–240V, 50Hz | 50–60Hz |
| Output control | Adjustable analogue dial | Adjustable analogue control |
| Mist outlets | Single adjustable outlet | Four adjustable nozzles plus one additional outlet |
| Automatic empty-tank cut-off | Not confirmed | Yes |
| Published noise level | Up to 35 dB(A) | Up to 35 dB(A) |
Using the RAM Ultrasonic Humidifier
- Position the humidifier upright on a stable, level and water-resistant surface.
- Fill the removable tank in accordance with the supplied instructions.
- Fit the tank and mist outlet securely before connecting the unit to power.
- Use the analogue control to begin at a low output and increase it gradually.
- Monitor relative humidity with a suitable hygrometer or environmental controller.
- Adjust the output as required for the plants, room size and ventilation rate.
Important Information
This humidifier adds moisture but does not measure relative humidity. Use a separate hygrometer or compatible humidity controller where automatic environmental control is required.
Do not restrict or cover the mist outlet. Keep the unit and its mist away from grow lights, electrical connections and other equipment that must remain dry. Clean the tank and ultrasonic components regularly in accordance with the manufacturer’s instructions to limit mineral deposits and maintain consistent output.
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HYDROGARDEN
- Tags: Filters & climate control, Humidity control, Ram

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