Scope of the Report

This report is indicating the findings of the site measurement and laboratory work for the Indoor Air Quality (IAQ) measurement at Starworld Hotel which is performed by LAWN Environmental Protection Ltd.

To gain the profile on indoor air quality condition, PAHs measurement (before test), one sample is made at Room 2630 which is the measurement at no installation of air purification system and no smoking and the other PAHs measurements (after test) are made at the following three rooms under the below condition:

• Room 2535 (installed Plasma Air purification system and PAHs measurements were made 0 minutes, 30 minutes and 60 minutes after smoking of 8 cigarettes (3 samples)
• Room 2536 (installed Biozone air purification system and PAHs measurements were made 0 minutes, 30 minutes and 60 minutes after smoking of 8 cigarettes (3 samples)
• Room 2132 (installed PCO air purification system and PAHs measurements were made 0 minutes, 30 minutes and 60 minutes after smoking of 8 cigarettes (3 samples)

The PAHs measurements (10 samples) were performed on 29 August, 2012 at Starwood Hotel, Macau.

Conclusion

From the measurement results, the performance and the efficiency of removing the PAHs from Room 2535 (Plasma Air) is the best as the rate of decrease the PAHs is highest which can drop the harmful cigarette smoke the best within 30 minutes after installed the Plasma Air air purification system in the hotel room.