Overview
The document provides a detailed description of the AA series high vacuum extraction units designed and manufactured by ENGMAR in France. These units are engineered for industrial applications, particularly for use with extraction welding torches.

Specifications
The AA series extraction units are compact and robust, offering optimum filtration efficiency of up to 99.999% for particles 1 μm and larger. They require limited space and can be installed both indoors and outdoors. The units feature a double filtration system with a metallic prefilter and cartridge.

Installation Options
The units offer flexible installation possibilities, including ground or wall mounting, stacking of multiple units, and installation on a trolley for mobility. An offset mounting option is available for enhanced ergonomics and security.

Product Variants
Several models are available, including units with metallic prefilters, opacimetric filters, and absolute HEPA H14 filters. The units can be connected to MIG/MAG/TIG torches and CHD laminar slit nozzles.

Filtration Details
The filtration system includes primary retention for heavy dust and is suitable for external discharge. The opacimetric filter provides class M filtration, achieving 99.995% efficiency for particles 0.3 μm and above. The combination of opacimetric and HEPA filters allows for clean air discharge and may be suitable for indoor air recycling, subject to local regulations.

Contact Information
ENGMAR SAS is located in St Romain de Popey, France. For inquiries, contact them at +33 (0)4 74 01 10 10 or via email at [email protected].