High-efficiency circulation fan for controlled environments

The Vosterman 18" HAF Multifan is a compact but powerful circulation fan designed to create a uniform climate in greenhouses, hydroponic grow rooms, and livestock facilities. With energy efficiency up to 23.1 CFM/W and sound levels as low as 48 dB(A), it provides strong air movement while keeping power use and noise to a minimum. Its simple design makes it easy to connect to poly air tubes, reducing installation time and cost compared to more complex greenhouse exhaust fan systems.

Durable air circulation fan for demanding climates

Built from materials that withstand harsh indoor agricultural environments, this air circulation fan is made for long-term, continuous operation. A 3-year motor guarantee underscores the reliability of the unit, giving growers peace of mind in critical climate-control applications. The fan’s low-maintenance design means fewer service interruptions and more consistent airflow for your crops.

Ideal for hydroponic greenhouses and grow room fans

In hydroponic setups, consistent air movement helps prevent microclimates, reduce disease pressure, and support vigorous plant growth. The Multifan can function as a small greenhouse fan in compact structures or as part of a larger array of grow room fans for bigger facilities. Its quiet performance makes it especially suitable for indoor operations where noise control matters, while its even horizontal airflow supports stable temperature and humidity throughout the canopy—similar to dedicated grow room circulation fans.

Key features:

• Ultra-quiet operation (≈48 dB(A)) – Keeps indoor grow rooms and greenhouses comfortable for workers while maintaining strong airflow around plants.

• High energy efficiency (up to 23.1 CFM/W) – Reduces ongoing electricity costs in 24/7 hydroponic operations, freeing budget for nutrients, lighting, and expansion.

• Optimized for uniform air movement – HAF-style airflow helps eliminate hot/cold spots and reduces humidity pockets that can lead to mildew and disease.

• Easy integration with poly air tubes – Simple connection to air distribution tubing lets you fine-tune airflow above and through dense hydroponic canopies.

• Rugged construction for wet environments – Materials resistant to extreme and humid conditions make it a reliable choice near reservoirs, nutrient lines, and misting systems.

• 3-year motor guarantee – Long warranty supports continuous, round-the-clock use in commercial hydroponic farms and professional greenhouse installations.

Specifications:

• Available in three versions with varying CFM (Cubic Feet per Minute) ratings: +/- 3,000, 4,000 and 4,750 CFM.
• Motor insulation class F with built-in thermal protection for single-phase motors.
• IP55 motor rating ensures water and dust resistance.
• Compatible with most 20.5” diameter poly air tubes.
• UL Listed for safety and quality assurance.

Additional Options:

• Power cord availability for 1~ 230V models.
• Built-in thermal detectors for 3-phase motors.