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Air Amplifiers

Vent, Exhaust, Cool, Dry and Clean with No Moving Parts

A simple, low cost way to move air, smoke, fumes, and light materials. Air Amplifiers utilize the coanda effect, a basic principle of fluidics, to create air motion in their surroundings. Using a small amount of compressed air as their power source, Air Amplifiers pull in large volumes of surrounding air to produce high volume, high velocity outlet flows.  Quiet, efficient Air Amplifiers will create output flows up to 25 times their consumption rate.

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Air Amplifier Comparison

  Efficiency Sound
Super Air Amplifier High Low Yes With Shims 275°F
Aluminum Adjustable
Air Amplifier
Medium Variable No Infinite
(No shims)
Stainless Steel
Adjustable Air Amplifier
Medium Variable No Infinite
(No shims)
High Temperature
Air Amplifier
High Low No With Shims 700°F
Special Air Amplifiers

Compressed air flows through the inlet (1) into an annular chamber (2). It is then throttled through a small ring nozzle (3) at high velocity. This primary airstream adheres to the coanda profile (4), which directs it toward the outlet. A low pressure area is created
at the center (5) inducing a high volume flow of surrounding air into the primary airstream. The combined flow of primary and surrounding air exhausts from the Air Amplifier in a high volume, high velocity flow.


EXAIR manufactures special Air Amplifiers suited to specific application requirements.  The Model 121021 High Temperature Air Amplifier (shown on the right) was developed for moving hot air to surfaces requiring uniform heating while in a furnace or oven.  Modeled after our Super Air Amplifier, the High Temperature Air Amplifier is the most efficient for pushing high volumes of hot air to points that typically remain cool. This special design is rated for environments up to 700°F (374°C) and its surface is protected from heat stress by a mil spec. coating process (developed for the aircraft industry), allowing easy disassembly for changing shims or cleaning.

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