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Pairs well with
Dry air costs you growth — stunted seedlings, slow clones, and stressed plants pushing through stages they should be cruising through. The VIVOSUN AeroStream H19 is a 19-litre ultrasonic humidifier with a canopy-level probe, WiFi app control, and full integration into the VIVOSUN Smart Grow System. Fill it once, set your target humidity, and let it hold the climate steady while you focus on the plants.
Key Specs
Pair the H19 with the AeroLush C08 for airflow and the AeroDrain D12 for runoff and you've got a fully closed-loop climate system — humidity in, moisture out, air moving through the canopy. Tighter VPD, fewer pest pressures, and noticeably less daily maintenance.
- Always mount the probe at canopy height — readings from floor level lie to you.
- Aim the mist outputs across, not at, the canopy to avoid wet leaves and pooling on plants.
How to Set It Up
Pairs Well With
Smart grow room air conditioner — distributes humidity evenly and prevents microclimates.
VIVOSUN AeroDrain D12Smart dehumidifier — closes the loop by pulling excess moisture back out in flower.
Environmental MonitorsCross-check the H19's readings with a second sensor — data beats trust.
Clip & Circulation FansKeep air moving through the canopy so humidity reaches every leaf evenly.
FAQ
What size space does the H19 cover?
The 19L tank and ultrasonic output suit most tents up to 5x5 and small grow rooms. For larger spaces, run two units or pair with proper air circulation to distribute humidity evenly across the canopy.
Can I control it from my phone?
Yes. The H19 connects over WiFi to the VIVOSUN app for remote target adjustments, real-time humidity readings, and low-water alerts. It also integrates with the VIVOSUN Smart Grow System for full ecosystem automation.
How quiet is it?
Ultrasonic humidifiers produce mist without a fan-style hum, and the H19 is built around that low-noise design. It's quiet enough for bedrooms and living spaces — most users find it disappears into background noise during the day.
What's the canopy probe for?
Humidity changes with height inside a tent — readings at the unit don't match what plants actually experience at canopy level. The external probe lets the H19 control humidity based on real plant-zone data instead of guessing.
How often does it need refilling?
Refill frequency depends on target humidity and room volume. At constant operation in a typical tent, expect 2–3 days between fills. The low-water alert lets you know via the app before it runs dry.
Do you ship Australia-wide?
Yes. We ship Australia-wide from Invermay, Tasmania. Free shipping on orders over $499*. Prices are GST inclusive.
Hold humidity exactly where you want it
19 litres of capacity, canopy-level accuracy, and app control — set it once and grow.