VIVOSUN AeroStream H19 Humidifier

Consistent Humidity Made Easy with the VIVOSUN AeroStream H19 Humidifier

Take full control of your grow room’s environment with the VIVOSUN AeroStream H19 Humidifier.

Designed for indoor gardeners, this ultrasonic humidifier produces a fine, cool mist that raises relative humidity quickly and evenly without leaving condensation on leaves or surfaces.

With its large tank, quiet operation, and adjustable output, the H19 is a reliable way to keep plants thriving from seedling through early flower.

• Fine ultrasonic mist; increases RH evenly without waterlogging your grow space
• Adjustable mist output; dial in the right humidity for seedlings, veg, or flower
• Large water tank; long runtimes between refills
• Auto shut-off; protects the unit when the tank runs low
• Quiet running; just 33dB during operation — suitable for home environments
• Grow-room ready design; IP54 rated for use in humid conditions

For growers looking to stabilise their climate and boost plant performance, the AeroStream H19 delivers professional humidity control in an affordable, compact package.

Why Humidity Matters

Still, dry air slows transpiration and stresses plants; overly damp conditions encourage mould and mildew. Stable humidity keeps VPD in range, helps seedlings root faster, encourages vigorous vegetative growth, and protects flowers from stress. By maintaining the right RH, the H19 supports healthier, stronger plants throughout the cycle.

Easy to Set Up

1. Fill the tank with clean water (RO recommended in hard water areas)
2. Place the humidifier on a stable surface with the mist outlet above canopy level
3. Select mist output to suit your stage of growth — start low and adjust gradually
4. Use clip fans to help disperse the mist evenly through the grow space
5. Empty and clean weekly to prevent mineral build-up or biofilm

VIVOSUN AeroStream H19 Contains:

• H19 Ultrasonic Humidifier Unit
• Integrated water tank
• Mains power cable (UK plug)
• User manual

Technical Specification

• Model: H19 Ultrasonic Humidifier
• Power: 12V low-voltage, safe design
• Noise level: 33dB
• Output levels: 10 airflow/mist settings + natural wind mode
• Oscillation: Automatic side-to-side mist dispersal
• Certification: ETL listed; IP54 water resistance
• Use case: Grow tents and small grow rooms; propagation through early flower