NV-AA1-12

Airflow amplifier

Three-way airflow amplification system

Creates a strong, focused beam of air

Optimised for NF-A12x25

Boosts fan performance whilst maintaining quietness

Ideal in combination with NV-FM1

For creating ultra-quiet desk or room fans that provide serious ventilation

The NV-AA1-12 is an airflow amplifier for NF-A12x25 120mm fans that is ideal for boosting their performance in desk and room ventilation applications. Thanks to a three-way airflow amplification system that combines helix energy recovery, progressive flow acceleration, and Venturi-effect volume enhancement, the NV-AA1 enables these fans to create a strong, focused beam of air while maintaining exceptional quietness of operation. As such, the NV-AA1-12 is both perfect for situations where fans are required to blow air across a room or other bigger spaces, but also for applications with smaller working distances like typical desk or ambient fans, where the amplification effect of the NV-AA1-12 makes it possible to achieve the same ventilation performance at lower fan speeds and noise levels.

Key features

Ideal in combination with NV-FM1

Do you require strong but quiet airflow on your desk or somewhere in your room? Combine the NV-AA1-12 and NF-A12x25 fan with the NV-FM1 multi-purpose pivoting fan mount! With its solid metal construction and flexible mounting options, the NV-FM1 is the ideal solution for putting or fixing a fan literally anywhere – from your desk or shelf to your walls or ceilings.

Helix energy recovery

The air that comes out of an axial fan has a high amount of rotational energy, which results in a helix-shaped flow path. The NV-AA1-12 recovers this rotational energy and uses it to accelerate the airflow. With the inside shape of the NV-AA1’s funnel carefully fine-tuned to the helix structure produced by the NF-A12x25 fan, it achieves an extremely high rate of energy recovery.

Progressive flow acceleration

Following the principle of mass continuity, a fluid’s speed increases when it’s forced through a reduced cross-sectional area, so when the air is driven through the NV-AA1’s progressively narrowing funnel, air speed increases continuously until it reaches maximum velocity at the outlet.

Venturi-effect volume enhancement

In accord with the principle of conservation of energy, air pressure must decrease as air velocity increases (Bernoulli’s principle). This reduction in pressure that occurs when a fluid flows through a constriction, the so-called Venturi-effect, creates a suction force at the outlet, which draws in additional air from the sides and through the cuts of the NV-AA1’s funnel, thereby enhancing the airflow volume.