Ultrasonic Nebulizer ATM 226

The Atomizer Aerosol Generator ATM 226 is especially suited for clean room and filter testing applications according to international standards. Function test at laminar flow boxes (DIN EN 12469) and cytostatica safety workbenches (DIN 12980), the qualitative test of filters for suspended matter (HEPA and ULPA filters), and acceptance measurements in clean rooms (according to DIN ISO 14644 and VDI 2083) are a essential necessity for personal security and product safety. Such measurements and checkouts need a suitable test aerosol. Therefore VDI-directive 3491 proposes an aerosol generator for producing a test aerosol with defined characteristics, like the ATM 226. By high generated particle numbers at a particle size distribution orientated at the Most Penetration Particle Size (MPPS) of the filter the locating of leaks in the system is possible fast and safe. If an oily aerosol substance is used (e.g. DOP, DEHS) the aerosol generator produces spherical particles mainly in the size range 0.1…0.5µm with a calculable residence time. That does nearly not extra contaminate the filter material. A further range of application for aerosol generators / liquid aerosol nebulizers is calibration of measuring devices and visualization of currents. That enables measurements of local velocities and flow profiles of the tracer particles by means of optical methods. Advantages Compact stainless steel housing – suitable for clean room application Connection directly to mains supply Polydisperse aerosol, mainly <1 µm Very high permanence of the generated particle size distribution Defined and high particle number concentration