Particle and Surface Sciences has added a complete HEPA-filter test solution to its product range.
A universal method is used to test HEPA filters: an aerosol generator produces an oil aerosol, which is then introduced into the airstream about to pass through the HEPA filter.
An aerosol photometer then measures the amount of aerosol upstream and downstream of the filter.
The result gives the performance of the HEPA filter and identifies leaks in the frame, seals or media.
Ancillary equipment is required to inject, mix and sample the aerosol, such as positive injection pumps, injection ports, sparge pipes, sample ports and scanning probes.
Particle and Surface Sciences also offers lighthouse particle counters and real-time contamination-monitoring systems.
PSS's other contamination-monitoring solutions include: airborne particle counts, liquid particle counts, airborne molecular contamination, mass concentration levels, electrostatic charge (ESD) monitoring instruments; and temperature, relative humidity and total organic carbon monitoring.
These solutions are suitable for semiconductor, data storage, pharmaceutical, biotechnology, aerospace and defence industry facilities.
