Overview

This document presents the technical specifications and functional principles of a laminar flow workstation compliant with European Norm EN 12469, designed to ensure safe manipulation of pathogenic materials through controlled airflow and filtration.

Functional Principle

The workstation operates by blowing Class 10 FS 209 laminar airflow through the work volume to maintain manipulation safety. Approximately 30% of the blown air is actively extracted through lateral grids and bulkheads under negative pressure, creating a protective barrier that prevents contamination from escaping the workspace. An equivalent 30% of air is extracted through a secondary HEPA filter (exhaust filter) to protect the environment. The remaining air is recirculated through the primary HEPA filter (main filter).

ECM Fan Technology

The unit employs Electronically Commutated Motor (ECM) fans characterized by continuous current supply, achieving up to 80% efficiency compared to 40% for standard fans. This results in significantly reduced electrical consumption (30% to 40% less) and lower noise levels. The fans are controlled by a microprocessor-based system that automatically regulates airflow by analyzing parameters such as intensity, torque, and motor velocity. The design avoids the use of sensors that could be affected by environmental factors like temperature and humidity, enhancing reliability.

HEPA Filtration

The workstation includes removable HEPA filters with a minimum efficiency of 99.999% for particles larger than 0.3 microns, ensuring sterile airflow and Class 100 cleanliness. The filters undergo 100% DOP (Dispersed Oil Particulate) control at the outlet to guarantee performance.

Structure and Materials

The bulkhead consists of two structures maintained under negative pressure to prevent leaks. The external structure is epoxy-painted, while the internal enclosure is made of polished, smooth stainless steel for easy cleaning and durability.

Airflow Barrier and Lighting

A dedicated airflow barrier protects the operator and environment. White fluorescent tubes are installed outside the working enclosure to isolate electrical components and provide illumination between 600 and 800 lux, complying with NFx 44201 standards.

Work Surface and Ergonomics

The work surface is autoclavable and ergonomically designed. Optional features include an adjustable stand, UV light, segmented work surface in three parts, stainless steel work surface, gas inlet, electrical sockets, sterile sleeve and waste bin, and charcoal filter.

Electrical Specifications

• Power supply: Single-phase 220V, 50Hz
• Power consumption: 0.9 kW
• Weight: 220 kg

Dimensions

Available models (Optimale 9, 12, 16, 18) vary in size with useful widths from 921 mm to 1836 mm, heights of 1400 mm, and depths of 616 mm (useful) to 786 mm (overall).

Maintenance and Documentation

The design allows direct access for maintenance. The product is supplied with certificates and a user handbook to ensure conformity and guarantee proper use.

Contact Information

Manufacturer: ADS Laminaire
Address: 35, rue Baudin - 93315 Le Pré St-Gervais, France
Tel: 01 48 44 74 69
Fax: 01 48 44 14 64
Email: [email protected]
Website: www.adslaminaire.com