Pairs well with
Most inline fans tap out well before your humidity does. The HVC Dura Mixed Flow Fan carries an IP68 waterproof rating — fully sealed against water ingress and purpose-built for 100% humidity environments where condensation is constant and ordinary fans fail within a season. Available in five sizes from 100mm through to 250mm, with a fan speed controller included across the entire range.
Specifications by Size
| Size | Motor Type | Airflow | Power | IP Rating | Controller |
|---|---|---|---|---|---|
| 100mm | Inline | 275 m³/h | 18W | IP68 | Included |
| 125mm | Inline | 275 m³/h | 18W | IP68 | Included |
| 150mm | EC Mixed Flow | 621 m³/h | 45W | IP68 | Included |
| 200mm | EC Mixed Flow | 1,182 m³/h | 85W | IP68 | Included |
| 250mm | EC Mixed Flow | 1,808 m³/h | 150W | IP68 | Included |
- 100mm — Small tents up to 1.0m x 1.0m or secondary exhaust runs in a larger setup
- 125mm — Tents up to 1.2m x 1.2m, the most common home grower configuration
- 150mm EC — Tents up to 1.5m x 1.5m and mid-sized grow rooms — the best all-rounder in the range
- 200mm EC — Tents up to 1.5m x 3.0m, large rooms and multi-light setups requiring serious air exchange rates
- 250mm EC — Tents up to 3.0m x 3.0m, commercial-scale environments or long duct runs with high static pressure
- When in doubt, size up — a fan running at 70% consistently outperforms one maxed out
Setting Up Your Dura Fan
Pairs Well With
Advanced environment control for the Dura Fan. Step up from manual speed adjustment to fully automated temperature and humidity management.
HVC Smart Speed ControllerAutomate your Dura Fan with thermal probe-based speed control. Compatible across the full Dura range.
Carbon FiltersRun exhaust through a carbon filter for odour-free output. Match the filter diameter to your Dura Fan size.
Grow TentsFrom compact home tents to large-scale enclosures — pair with your Dura Fan for a fully sealed and ventilated environment.
Environmental MonitorsTrack temperature and humidity in real time so you know exactly when to dial your fan speed up or back.
Frequently Asked Questions
Is the Dura Fan safe to use in high-humidity grow environments?
Yes. The IP68 rating means the fan is fully sealed against dust and continuous water ingress — it is rated for 100% humidity environments where condensation is constant. Standard inline fans without an IP rating will degrade and fail under these conditions over time.
Does the fan speed controller come included with every size?
Yes. Every size in the Dura range ships with a fan speed controller included. No additional accessories are required to start managing airflow from the moment you install it.
What is the difference between the 100mm/125mm models and the larger EC models?
The 100mm and 125mm Dura fans use standard inline motors, both rated at 275 m³/h at 18 watts. The 150mm, 200mm, and 250mm models use EC (electronically commutated) mixed flow motors, which run more efficiently, operate quieter under load, and reach significantly higher airflow outputs — from 621 m³/h up to 1,808 m³/h on the 250mm.
Can I upgrade from the included speed controller to an HVC Smart Controller?
Yes. The Dura Fan is compatible with HVC Smart Controllers, which add temperature and humidity-based automation via a thermal probe. This replaces manual speed adjustment with hands-off environment management — the controller responds to conditions in your room rather than requiring you to dial it.
How do I calculate the right fan size for my grow room?
Aim for at least one full air exchange per minute. Multiply your room's length x width x height in metres to get your volume in m³ — that figure is the minimum airflow rating you need at full fan speed. Then account for duct bends and a carbon filter reducing effective output by 20–30%, and size up if you are close to the limit. A fan running at 70% capacity is quieter, more efficient, and lasts longer than one running flat out.
Built for the Worst Your Grow Room Can Throw
IP68 rated. Fan speed controller included. Five sizes from 100mm to 250mm. Free shipping over $499*
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