Horizontal Laminar Airflow Unit

Care Equipments - Clean Room Equipments Manufacturer

Horizontal Laminar Air Flow Unit is a cabinet fitted with HEPA filtered air flow system. Here, laminar means unidirectional constant flow of air with almost no or minimal turbulence. The air flow velocity remains between 0.3 m/s to 0.5 m/s. The purpose of using such workstations in laboratory is to create particle and bacteria free working environment to carry out specialized work. As these units discharge air towards user, they provide no personal protection but product protection from room contaminants. LAF is short form of laminar air flow. also known as HLAF.

In horizontal laminar air flow unit, room air is entered in working area through HEPA filter fitted on the back side of the cabinet. Filtered air flows horizontally towards the user creating sterile working environment. The efficiency of a Laminar Air Flow workstation depends upon the quality of pre filters and HEPA filters. In our LAF, the Air filtration system is created to work efficiently even in critical environment. Pre filter that we use are box type pleated having efficiency 95% down to 5 micron and made of HDPE + Non-woven + HDPE mesh media and fitted in aluminum case. The HEPA filters are of high quality having efficiency 99.999 % down to 0.3 micron and fitted in aluminum anodized case. The blower assembly has ¼ HP; 1400 RPM branded motor and has aluminum anodized impellers.

The working area is carefully designed for comfortable working and easy cleaning. The workbench is made of stainless steel. Standard fittings are air / gas cock and electrical outlet. For illumination, we use fluorescent lamps. Front side of working area is covered by manual sliding door (sash), which is made of transparent acrylic plastic. LCD display for air velocity, time and lamp on/off status are displayed on it. Germicidal UV lamp, extra electrical socket and magnahelic gauge are also fitted if required.

Care Equipment is a Leading Horizontal Laminar Air Flow Unit manufacturer in India. We supply to all over India as well as abroad. Our LAF deliver low noise and easy to use operation, rugged construction promises long service life. we make standard and customized LAF to any customer provided size. Every Horizontal Laminar Air Flow Unit is made to comply international standards and supplied at industry leading price in India.

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Technical Specifications

Parameter Specification
Air Flow Horizontal Flow
Air Cleanliness Dust counts exceeds Class 100 requirements as per ISO 14644 & IEST-RP-CC001.3
Air Velocity 90 ± 20 FPM at 150 mm from HEPA Filter Face, (0.45 ± 0.05 m/s)
Material Thickness 1 mm / 1.2 mm or In Combination
Surface Finish Matte Finish No. 4
Material Grade SS 304 / SS 316 / SS 316L / In Combination
Construction SS 304 Pipe Structure
Side Walls 5 mm Transparent – Acrylic / Polycarbonate / Stainless Steel SS 304
Front Sash 5 mm Hinged Type Transparent – Acrylic / Polycarbonate / Stainless Steel SS 304
HEPA Filter 0.3 Micron, H14 Grade with Efficiency 99.999%, Supply Minipleat HEPA Filter
Pre-Filter 5 Micron, EU5 grade with Efficiency 95% – Washable (For Fresh Air & Recirculation)
Protective Grille Yes for HEPA Filters and Pre Filters
Motor Blower Statically & Dynamically Balanced Single/Double Inlet Centrifugal Type Motor Blower
Magnehelic Gauge 0 to 25 MM, To measure differential pressure across HEPA Filter
Speed Variable To adjust the speed of Motor Blower and maintain the required velocity.
Display Two Line Digital Display with ON/OFF Buttons with LED Indication
LED Light Diffused Fluorescent Lighting to provide an intensity of 300 LUX
Alarm System Audio Visual Alarm for Blower Trip
System Protection Password Protected System
Front Sash Handle SS 304
DOP/PAO Test Port SS 304 (For HEPA Filter Testing)
Atmospheric Nozzle SS 304
Noise Level Less than 65 DB on scale
Power Supply 230V ± 10V, 50 Hz, Single Phase (Also Available in 3 Phase)
Documentation DQ, IQ and OQ Documents along with all Necessary Test Certificates


Standard Size of Horizontal Laminar Air Flow Unit (HLAF)

Internal Size in Feet
(W X D X H)
Internal Size in MM
(W X D X H)
HEPA Filter Size in Feet
(W X D X H)
2 X 2 X 2 610 X 610 X 610 2 Feet X 2 Feet X 3 Inch
3 X 2 X 2 915 X 610 X 610 3 Feet X 2 Feet X 3 Inch
4 X 2 X 2 1220 X 610 X 610 4 Feet X 2 Feet X 3 Inch
6 X 2 X 2 1830 X 610 X 610 3 Feet X 2 Feet X 3 Inch (2 Nos)
*We also manufacture Horizontal Laminar Air Flow Unit (HLAF) size as per customer’s requirement


Warranty and Service Support

We provide 1 year manufacturing warranty from the date of dispatch, We believe in best of the quality and after-sales service support.



  • Design Qualification
  • Installation Qualification
  • Operational Qualification



  • M.O.C. Certificate
  • Test Certificate for Controller
  • Other Required Certificates
  • HEPA Filter Test Certificate
  • Pre Filter and Fine Filter Test Certificate
  • Motor Blower Test Certificate
  • Control Panel Test Certificate
  • Differential Pressure Gauge Calibration Certificate


Areas of Application

  • Pharmaceutical Industries
  • Hospitals and Medial
  • Microbiology Laboratories
  • Chemical Research Laboratories
  • Food Processing Industries
  • Electronics Industries


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