1. Chamber background – brand new bag (first day of use) 27.08.2009

2. CPC number dropped to <4p/cc after two fill/flush cycles!

3. Chamber DMPS on housing air.. The dmps has a 0.02lpm leak of clean circulation air (~3% dilution)

4. Chamber housing air

5. 11:01 cpc number dropping below 1p/cc with no spikes!

6. Zero mass!

8. During final flush

9. DMPS software crashed! Right after lights on

10. 1h ALO: still not much happening

11. Just after 1h ALO: nucleation started

12. Chamber diagnostics

13. 3h ALO: almost no change in NOx and O3 initial concentrations so far!

14. 4h ALO: still no O3 production and not much change in NOx concentration

15. The excess flow meter is not connected

16. Exp overview