
rev.3.01
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The basic principle of the cabinet is that the replacement air moves through the grid at the front edge of
the work surface to the bottom basin and then again to the recirculation system. Simultaneously it forms
an air curtain in the work opening, which prevents air from flowing outwards.
The recirculated air inside the cabinet is purified as it flows through the HEPA-filter and it flows laminarly
through the workspace. (See picture 2).
Picture 2. Principle of the airflow
1.2. CONSTRUCTION MATERIALS
The main construction material of the cabinet is painted mild steel. The work surface and the collecting
pan located below it are made of stainless steel (AISI 304).
The front and side walls are made of 6 mm thick laminated safety glass.
1.3. POSITIONING THE CABINET AND SAFETY INSTRUCTIONS
For more information about the cabinets safe handling and moving see the service manual part
2.2
The cabinet should be positioned so that there are no external or conflicting airflow disturbances when it
is operating such as open windows or personnel passing in front of it.
The cabinet should be switched on at least 15 minutes before starting the work so there is time to clean
the workspace. Before starting the actual work it is recommended that the work is carefully prepared so
that equipment and material are moved in and out of the cabinet as little as possible.
A continuous in-and-out movement disturbs the airflow and weakens the protection given by the cabinet.
For the cabinet to give the best possible protection, you should try to minimize rapid hand and arm
movements as much as possible.
NOTE! The Cabinet may crash. Use special attention when moving and
installing the cabinet. Take into account the center of gravity when placing
transportation equipment.