Reverse LAF

Reverse Laminar Air Flow Unit

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

sterireverseTM 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.


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


General Specifications

Triple Stage filtration

  • EU4 – Prefilters (90% down to 10 micron)
  • EU7 – Intermediate Filter (95% down to 3 micron)
  • EU14 – HEPA Filter – Supply / Exhaust (99.999% down to 0.3 micron)

Statically & Dynamically balanced Motor-blower with suspension arrangement to reduce noise level

Double skin puff filled side panels

Horizontal internal Covings at base

Fluorescent Lights with Milky White Diffuser

Differential Pressure Gauges : 3 Nos.

ON/OFF Switches

Clean Down Timer with Operation HOLD indicator

DOP Test Port

5/15 Amp Switch Socket for external equipment


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

Light intensity : > 300 lux

POWER SUPPLY : 230V AC 1-Ø 50HZ / 415V AC 3- Ø 50HZ


Options and Accessories

A wide range of configurations to suit any containment application :

  • Double skin side panels with view windows
  • Stainless steel perforated grille for HEPA Filter
  • Front Anti Static PVC Curtains (for warehouse applications)
  • Front doors (hinged/sliding/rapid roller)
  • SS Stand alone table for keeping Weighing Scale
  • Sodium Vapor Lamps
  • Night Mode Operation
  • Velocity display with alarms (audible and visible)
  • Filter blocked alarms (audible and visible)
  • Explosion proof electrics for Flame – proof applications
  • PLC based Control System
  • Once-through airflow systems

• Safe change Bag in / Bag out arrangement for filters