In order to protect products and samples at microbiological laminar flow cabinets from contamination, and to shield staff and the environment from potentially hazardous material, ventilation is essential. A laminar flow cabinet has an opening through which the user can carry out work procedures inside the cabinet. It is constructed such that the user is protected, the risk of a product and a cross-contamination is low, and the escape of suspended airborne contamination present in the cabinet is controlled by suitably filtered convection air and by filtration of the air output. Accordingly, DIN EN 12469 demands the testing of the ventilation conditions and the air volume flow.

• Measure air flow velocity reliably even at low velocities

• The air supply flow through the HEPA filter should be monitored

• The required measurements also include lighting and sound level

Valuable information on measuring air temperature, relative humidity and differential pressure as well as on flow testing in cleanrooms

• The most important standards

• Useful tips on measurements

• Measuring device requirements

The testo Smart App guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.

Newly added:

PRO measuring programs for increasing the efficiency of your applications

• Air balancing

• Multi-site measurement