South African industrial instrumentation and control equipment supplier Etest says its compressed-air-sourced Air Amplifier – manufactured by US-based compressed-air product manufacturer Exair – remains one of the most effective methods for air, gas, fumes and dust control available to industry and mining.

Etest marketing manager Lauren Johnson tells Engineering News that Etest has been Exair’s sole importer in the Southern African region and the Indian Ocean Islands for 16 years.

She adds that, over the years, Etest has sold Exair products to companies that include mining explosives supplier AEL Mining Services, State-owned logistics firm Transnet, biopolymer producer Lignotech; nutrition, health and wellness company Nestlé, auto-mation distributor Tectra and ASX-listed global commercial explosives and mining and tunnelling ground-support provider Orica.

“We have a wide range of clientele from various spheres of business because our Air Amplifier can be used for not only dust control but also venting, exhausting, cooling, drying and cleaning,” she elaborates.

About Exair Air Amplifier
Johnson describes the Air Amplifier as a simple, low-cost way to move air, smoke, fumes and light materials from point A to point B and away from human exposure.

“Air Amplifier uses the coanda effect, a basic principle of fluidics, to create air motion in the surroundings, whereby the amplifier uses a small amount of compressed air as its power source to draw in large volumes of surrounding air to produce high-volume, high-velocity outlet flows.

“It is quiet, efficient and it creates output flows up to 25 times the consumption rate. Our Air Amplifiers have no moving parts, ensuring maintenance-free operation, and require no electricity,” elaborates Johnson.

She highlights that the amplifier’s air supply pressure can be regulated to suit the user’s required flow. In addition, the vacuum and discharge ends of the Air Amplifier can be ducted to draw fresh air from other locations or to channel smoke and fumes into the desired direction.