- About Us
- Filter Test System
- Semiconductor and Microelectronics
- Cryogenic systems
- Gas Scrubbers
- Contact Us
For protection grade measurement in operating rooms according to SWKI 99-3 and DIN 1946-4 Topas developed the Aerosol Distribution and Dilution System ADD 536. It provides test aerosol generated by an aerosol generator (e.g. Topas ATM 226) at six different outlet ports with a defined source flow, especially for verification of hospital operating rooms.
Hospital operating rooms are specially designed to avoid contaminations and therefore additional infections of patients during operations. To assure a low level of particle contaminations a laminar air flow is applied to the operating table.
To verify the retention efficiency of this flow regime a verification with a defined test aerosol is required according to the standards DIN 1946-4 and SWKI 99-3. For that reason a total particle rate of 6.3·109 P/min has to be distributed to six different positions and emitted with a reliable long term stability. From the standards it is also required that this total particle rate is continuously monitored and controlled by a particle counter.