Reverse Laminar Flow

Reverse Laminar Flow

sterireverse™ is designed for providing highest level of protection from airborne contaminants generated during powder handling operations such as sampling, charging & dispensing.

sterireverse™ provides :
. Operator Protection
. Product Protection
. Environment Protection

The downflow booth operates on a recirculatory airflow principle providing containment by air movement.

A clean, constant, laminar downflow of Class 100 air is supplied in workarea suppressing any dust clouds generated during open powder processing, removing and capturing airborne particles from the operator’s breathing zone.

The Prefilters at the base of the rear wall capture the airborne contaminants generated. Intake velocity at prefilters increases to ensure scavenging effect.

A small percentage of air is discharged from the booth through the bleed exhaust HEPA filter to maintain the working space under negative pressure.

sterireverse™ is available in powder coated Mild Steel, SS 304 / SS 316 / SS 316L or a combination of both.

Standard Models


Hepa Filter Area (L x W)

Work Area Dimension (L x W x H)


1220 x 915 MM

1220 x 915 x 2135 MM


1220 x 1220 MM

1220 x 1220 x 2135 MM


1830 x 1220 MM

1830 x 1220 x 2135 MM

General Specifications
Two Stage filtration
•   EU6 – Prefilter (95% down to 5 micron)
•   EU14 – HEPA Filter – Supply (99.999% down to 0.3 micron)
Statically & Dynamically balanced Motor-blower with suspension arrangement to reduce noise level
Doors with double walled flush glass view panels
SS Handles & SS hinges
Internal covings for easy cleaning
Electro-magnetic Interlocking
Indicator on either side
Door Release Switch on either side
Differential Pressure Gauge : 1 No.
On / Off Switch for Motor
DOP Test Port

Standard Models


Work Area Dimension (L x W x H)


450 x 450 x 450 mm


610 x 610 x 610 mm


steripass™ is with a variety of standard dimensions.
Also our steripass™ can be custom engineered to any size.

Operating Conditions

Air cleanliness :       ISO Class 5 (ISO 14644-1:1999 (E))
Air Velocities :       0.45 ± 0.05 mps
Air Flow :       Vertical – Recirculatory
Noise Level :       Less than 67 dB
Vibration Level :       Minimum
POWER SUPPLY :       230V AC 1-Ø 50HZ

Options and Accessories
A wide range of configurations to suit any application :
• Mechanical Interlocking
• U. V. Light with Hour Meter with interlocking arrangement to put-off U.V. Light if either
door opens
• Floor mounted contruction with three side wall structure & Door Drop Seal
• Support Stand to mount the pass box
• Flange for sealing the gap between the pass box and the cleanroom wall