Have you Tried the Lighthouse 3016 Particle Counter ?

One of our best selling handheld models, the Lighthouse 3016 is a feature packed, multi-mode 6 channel particle counter & sizer with mass measurement capabilities (mg/m3), built-in temperature and humidity sensors, data logging, color touch screen and many other advanced features. Weather your application is cleanroom monitoring, indoor air quality monitoring, occupational health & safety exposure monitoring, smoke monitoring, dust monitoring or others, the 3016 is an excellent handheld particle measurement device which is available at very competitive pricing. More