Fog Generator for Air Flow Visualization

For the past 15 years, the Topas GmbH is well known for its reliable and efficient equipment for clean room validation, like aerosol generators, dilution systems, sampling probes, particle counters, qualification and validation software.

The devices range is now extended by the Fog Generator CFG 290. In Germany Leschke Messtechnik GmbH is the company's distributor.

The Condensation Fog Generator CFG 290 produces a very dense, good visible fog. The fog generator is suitable for visualization and tracking of air flows according to ISO 14644-3 Annex B7 and VDI 2083-3. The fog has a long holding time in rooms and is sterile, non-toxic and oil-free.  The fogger is portable and especially designed for mobile use. The power supply is a polymer rechargeable battery.

The generator can be equipped with different distribution systems for the fog via a system connection. Typical application fields are:

• - Air flow visualization in rooms and air conditioning facilities
• - Especially suited for use in clean rooms
• - Visual leakage test of installations and components
• - Application as test aerosol, e.g. for filter testing

Characteristic of Fog Generator CFG 290 is a special vaporiser that ensures generation of fog within a short time (few seconds) after releasing of fog output. Heating power is only during time of generation of fog applied. The short response time supersedes stand-by heating. That enables a long lifetime of the rechargeable battery and a long operating time during mobile use.

The fog outlet of inlet probe is equipped with a separator. There condensate droplets from the inlet probe and very bid fog droplets are deposited.

By dint of an enforced feeding of condensation air (no injector effect) it is possible to control the fraction of air and different distribution systems for the fog can be applied.

The generator is capable to pressurize the fog distribution system with a sufficient overpressure in order to ensure a uniform escape of fog from multiple outlets into the environment.