VIVOSUN AeroStream H19 Humidifier - Precision Humidity Control for Grow Tents
The Vivosun AeroStream H19 Humidifier keeps your grow room at the perfect humidity levels for healthy plant development. With a large water tank, fine mist output, and easy-to-use controls, it delivers consistent humidity to support seedlings, veg growth, and flowering. Built for grow tents, it runs quietly and efficiently while resisting the warm, humid conditions that can cause standard humidifiers to fail.
Please Note: These are purchased to order so slightly longer lead-times apply
Key Benefits
- Powerful mist output — boosts humidity quickly and evenly across the tent.
- Large water capacity — fewer refills needed, even during long runtime.
- Adjustable settings — dial in the perfect level for propagation, veg, or flower.
- Quiet operation — won’t add distracting noise to your grow space.
- Durable build — designed to cope with the heat and humidity of growroom use.
Why You Need to Control Humidity
Humidity plays a huge role in plant growth. Seedlings and cuttings thrive in higher humidity, vegging plants need balanced levels for fast growth, and flowering plants require lower humidity to prevent mould and bud rot. Without control, your plants risk stress, slowed growth, and reduced yields. The AeroStream H19 gives you reliable control so you can hit the right VPD (Vapour Pressure Deficit) across every stage.
How to Set Up the VIVOSUN AeroStream H19 Humidifier
- Fill the tank: Add clean, filtered water to the reservoir.
- Position correctly: Place the unit inside or just outside the tent so mist flows into the canopy area.
- Power on: Plug into mains and select your desired output level.
- Adjust as needed: Increase or decrease mist based on your current growth stage and hygrometer readings.
- Maintain: Clean the tank regularly and use RO water to prevent limescale or bacteria build-up.
Tech Specs
- Model: AeroStream H19
- Type: Ultrasonic humidifier
- Tank capacity: Large reservoir (sized for long runtimes)
- Mist output: Adjustable fine mist
- Noise level: Quiet operation
- Controls: Easy adjustable settings
- Use case: Grow tents & small rooms
- Power: Mains operated (UK plug)
Top Tip: Pair your humidifier with a hygrometer or environment controller to automate humidity and hit your target VPD effortlessly.