為探討生化環境防護劑對大氣中落菌移除效果，採用某生技公司生產之EB602生化環境防護劑，經稀釋
後以加溫型霧化器霧化至辦公室及學校教室大氣中，測定其對大氣中微生物落菌移除效果。EB602稀釋度低
於300倍時，對Escherichia coli、Staphylococcus aureus和Aspergillus versicolor生長有抑制作用。位於臺北縣某科技
顧問公司辦公室及實驗室，處理前室內大氣中細菌和真菌落菌數分別為118-214和23-96 CFU/h/m2。當每m3大氣
霧化3.82-5.59 mL EB602稀釋液時，處理後室內落菌數分別為128-171和23-55 CFU/h/m2。對照組蒸餾水處理後落
菌數分別為202 ± 19和78 ± 6 CFU/h/m2。當於測試前一天打開窗戶，測試前12 h前關閉窗戶，處理前室內落菌
數分別為472-856和92-384 CFU/h/m2。當每m3霧化14.91-19.04 mL EB602稀釋液時，處理後室內落菌數分別為512-
684 和92-220 CFU/h/m2。蒸餾水處理後分別為808 ± 76 和312 ± 24 CFU/h/m2。位於桃園縣某國民小學教室、自
習室和遊戲室，處理前室內落菌數分別為419-827和702-995 CFU/h/m2。當每m3霧化5.88-10.52 mL EB602稀釋液
時，處理後室內落菌數分別為398-712和733-890 CFU/h/m2。蒸餾水處理後分別為450 ± 36和859 ± 32 CFU/h/m2。
當室內先以電扇吹動30 min後，處理前室內落菌數分別為234-371和93-189 CFU/h/m2。當每m3霧化5.34-10.98 mL
EB602稀釋液時，處理後室內落菌數分別為257-366和109-223 CFU/h/m2。蒸餾水處理後分別為360 ± 28和194 ±
39 CFU/h/m2。可見以稀釋150-300倍EB602霧化對大氣中細菌和真菌落菌數移除率分別為14.6-41.8和4.2-76.0%；稀釋度大於600倍與對照組蒸餾水對落菌數移除效果不明顯。

To investigate the effects of the biochemical environment protectant on the removal of indoor air microbial counts, a biochemical environment protectant, EB602, was diluted and aerosolized to the indoo air of an office, the laboratories and the classrooms, and the efficiency of microbial counts removal was determined. The office and the laboratories are located at a technology company in Taipei County. The initial
bacterial and fungal counts of the indoor air were 118-214 and 23-96 CFU/h/m2, respectively. The final counts were 128-171 and 23-55 CFU/h/m2 when 3.82-5.59 mL/m3 of EB602 was aerosolized, while the final bacterial
and fungal counts of distilled water treatment, as a control, were 202 ± 19 and 78 ± 6 CFU/h/m2, respectively.
After opening the windows for 24 h and closing again 12 h before measurement, the indoor air bacterial and fungal counts were changed from 472-856 and 92-384 CFU/h/m2 to the final counts of 512-684 and 92-
220 CFU/h/m2 when 14.91-19.04 mL/m3 of EB602 was aerosolized. The final bacterial and fungal counts of distilled water treatment were 808 ± 76 and 312 ± 24 CFU/h/m2, respectively. For the tests in the classroom,
the play room and the study room of an elemental school located in Taoyuan County, the initial indoor air acterial and fungal counts were 419-827 and 702-995 CFU/h/m2, respectively; the final counts were 398-
712 and 733-890 CFU/h/m2 when 5.88-10.52 mL/m3 of EB602 was aerosolized to the indoor air. The final bacterial and fungal counts of distilled water treatment were 450 ± 36 and 859 ± 32 CFU/h/m2, respectively.
After operating an electric fan for 30 minutes followed by spraying 5.34-10.98 mL/m3 of EB602, the indoor air bacterial and fungal counts were changed from 234-371 and 93-189 CFU/h/m2 to the final counts of 257-
366 and 109-223 CFU/h/m2. The final bacterial and fungal counts of distilled water treatment were 360 ± 28 and 194 ± 39 CFU/h/m2, respectively. Based on the results in this study, 150-300-fold dilutions of EB602 biochemical environment protectant were able to remove the microbial counts in indoor air, while dilutionst higher than 600 fold exhibited similar effects to the distilled water vapor.