Features

1. All of Sigma Scientific’s wind-tunnels have one flanged end where the blower draws the air in through the tunnel.

2. Both ends of the wind tunnel are covered with diffusing and filtering media, that are placed and compressed using a series of bolts.

3. The air-in side has several layers of activated charcoal-impregnated fiber, which when compressed serves two purposes:  

• As an air diffuser to develop high back-pressure on one side and produce a uniform / laminar flow through the media as the air passes to the low pressure side.

• As a hydrocarbon filter to remove ambient VOC’s from the bioassay environment.

1. These wind-tunnels can have any number of access ports or doors and are able to be completely disassembled for alternating the configuration. 

2. Both sliding access doors open to nearly half the length of the tunnel on both sides allowing maximum access and easy interior cleaning. 

3. All of Sigma Scientific’s tunnels use a remotely connected high speed AC or DC blower motor which can cover wind velocities from 10 to 150 cm/sec.  Higher velocities are available. 

4. The motor is connected to the tunnel via a flexible aluminum duct which minimizes noise from the blower and isolates vibrations.

5. All Sigma Scientific tunnels come equipped with variable dampers allowing precise wind control.