Description
Hold Your RH Steady Instead of Chasing It
The VIVOSUN AeroStream range is built for indoor growing spaces rather than living rooms. Household humidifiers struggle in a warm, already-humid tent; the AeroStream copes with that environment and delivers a fine, even ultrasonic mist that lifts relative humidity without soaking leaves and surfaces. Adjustable output control sets a different RH target for propagation, veg and early flower, and three tank sizes - 5 litre (H05), 9 litre (H09) and 19 litre (H19) - match runtime to the size of your room.
Key Benefits
- Fine ultrasonic mist - raises humidity evenly without wetting foliage or kit
- Adjustable output - dial RH to suit cuttings, veg plants or early flower
- Grow-room ready build - designed to handle the heat and moisture inside a tent
- Quiet operation - suitable for continuous running in tents and indoor spaces
- Three tank sizes - 5 L, 9 L and 19 L for longer runtimes with fewer refills
- Keeps VPD on target - stable RH rather than constant reactive adjustment
Dry Air, Transpiration Stress and Slow Rooting
Humidity drives how fast a plant moves water and minerals. Cuttings and seedlings need high RH to cut transpiration stress and root quickly - drop it and you get slow growth, weak roots and cuttings that stall instead of striking. In veg, balanced humidity keeps nutrient uptake moving, and controlled RH later limits disease pressure in the canopy. Set a level and hold it, rather than reacting after the damage is done.
How to Use
- Fill: use clean water - RO is recommended in hard water areas
- Position: inside the tent, or just outside with the mist directed into the canopy
- Set output: match mist output to the plant stage - start low and adjust gradually
- Monitor: track RH with a hygrometer or environmental controller
- Maintain: clean the tank regularly to prevent limescale and bacterial build-up
Technical Specifications
- Type: ultrasonic grow-room humidifier
- Mist type: fine ultrasonic mist
- Output control: adjustable
- Smart control: VIVOSUN app over 2.4 GHz Wi-Fi
- Sensor: temperature and humidity probe, 3 m
- Input: 100-240 V AC, 50/60 Hz
- Power supply: mains cable, UK plug
- Operating range: 5-50°C, 20-99% RH
- Supplied with: humidifier, 3 m T/RH sensor, mains cable, manual
- Best for: propagation, vegetative growth and early flower
- Warranty: 2 years (VIVOSUN)
| By size | 5 Litre H05 | 9 Litre HO9 | 19 Litre H19 |
|---|---|---|---|
| Tank | 5 L | 9 L | 19 L |
| Mist output | 250 ml/h | 450 ml/h | 1,300 ml/h |
| Power | 28 W | 32 W | 100 W |
| Noise | ≤35 dB | ≤35 dB | ≤46 dB(A) |
| Max runtime | 50 h | 60 h | 67 h |
| Dimensions | 18.8 x 18.8 x 35.2cm | 18 x 18 x 64.5cm | 24 x 26.5 x 120.5cm |
| Weight | 1.7kg | 2.68kg | 5.3kg |
Questions & answers
Which size do I need?
H05 (5 litres, 250 ml/h), H09 (9 litres, 450 ml/h) or H19 (19 litres, 1,300 ml/h). Bigger tanks mean longer runs between refills.
How does it compare with the AC Infinity CloudForge?
CloudForge runs from 4.5 to 15 litres and 240 to 1,300 ml/h, with onboard VPD control and UIS integration. The AeroStream H19 has the larger tank of the two ranges at 19 litres.
How noisy is it?
35 dB(A) or lower on the H05 and H09, and 46 dB(A) or lower on the H19.
What power does it draw?
28W (H05), 32W (H09) or 100W (H19), from a mains cable with a UK plug.
What water should I use?
Clean water, with RO recommended in hard water areas. Clean the tank regularly to stop limescale and bacteria building up.
