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Vertical Laminar Air Flow

Precision-Controlled Environmental Testing for Reliable Stability Studies

Vertical Laminar Air Flow Use
Kesar Control Systems

Vertical Laminar Air Flow

Introduction

Kesar Control Systems manufactures high-quality Vertical Laminar Air Flow (VLF) units designed to provide a sterile and particle-free working environment for sensitive laboratory and pharmaceutical applications. The system delivers HEPA-filtered air vertically from top to bottom, creating a unidirectional airflow that protects products from airborne contamination. This controlled airflow sweeps particles away from the work surface and maintains ISO Class 5 clean air conditions.

Construction & Design

  • Cabinet fabricated in SS-304 / SS-316.
  • Smooth inner surfaces to prevent contamination.
  • Work table made of stainless steel perforated sheet.
  • Transparent side panels for clear visibility.
  • Designed according to GMP guidelines.
  • Corrosion-resistant and easy to disinfect.

Filtration System

Primary Filtration:

Non-woven Pre-Filter (EU-04 / G4).

Efficiency: 95% down to 5 μm.

Secondary Filtration:

Mini-Pleat HEPA Filter – H14 Grade

Efficiency: 99.997% for particles ≥0.3 μm

Control & Instrumentation

Feather-touch LED controller panel

Magnehelic differential pressure gauge

Digital hour meter

Blower ON/OFF control

UV lamp timer control

LED lighting control

Optional filter blockage alarm

Lighting System

Fluorescent / LED light with minimum 300–1000 lux illumination

UV Germicidal Lamp for sterilization during idle periods

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Features

  • ISO Class 5 cleanliness according to ISO 14644-1.
  • Vertical unidirectional laminar airflow.
  • Mini-Pleat HEPA Filter H-14 with 99.997% efficiency at 0.3 μm.
  • Two-stage filtration system (Pre-filter + HEPA filter).
  • Stainless Steel SS-304 / SS-316 construction.
  • Touch LED controller for blower, lighting and pressure display.
  • Magnehelic differential pressure gauge.
  • UV Germicidal lamp for sterilization.
  • LED / Fluorescent lighting.
  • Low noise operation ≤ 65 dB.
  • GMP compliant design.
  • Easy cleaning and maintenance.

Applications

  • Pharmaceutical laboratories
  • Microbiology laboratories
  • Biotechnology research
  • Tissue culture work
  • Sterile drug preparation
  • Electronics assembly
  • Food quality testing

Technical Specification

Air Cleanliness ISO Class 5
Airflow Direction Vertical
Air Velocity 0.45 ± 0.05 m/s
HEPA Filter Efficiency 99.997% at 0.3 μm
Pre-Filter Efficiency 95% at 5 μm
Noise Level ≤ 65 Db
Lighting ≥ 300 Lux
Power Supply Single Phase 220–230 V, 50 Hz

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