近年來，隨著科技的發展，實作課程也講求以數位化的形式提供學生進行學習與加工，因此許多數位加工機具隨著各種政府計畫推動而引入了教學現場。但在教學現場實作時，數位加工機具看似較傳統加工機具少了許多粉塵，但其實在加工時依舊會產生大量之細懸浮微粒。因此本研究即以臺北市兩所學校之不同類之雷射切割機，使用Alphasense所生產之光學懸浮微粒檢測儀進行細懸浮微粒（PM2.5）檢測，並使用一般教學常用之密集板以及壓克力進行雕刻與切斷兩種加工，以了解其細懸浮微粒之產生情形。
在本實驗中為了解細懸浮微粒產生情形，設計了污染源測試以及教室操作環境檢測，在檢測結果上，污染源測試之細懸浮微粒數值以及教室內加工時之細懸浮微粒數值皆高於環保署規定之安全數值35μg/m3，其中密集板之雷射雕刻平均值可達856.95μg/m3，壓克力數值則達210.45μg/m3。實驗並且針對操作後之細懸浮微粒數值下降幅度進行檢測與確認，測試之細懸浮微粒之下降至安全範圍所需時間超過一分鐘。因此在本研究中亦針對雷射切割機具在教學時之加工操作方式提供操作意見，希望透過本實驗之檢測結果，提供教師以及學生更優質之教學環境。

In recent years, with the development of science and technology, the technology curriculum also aims to provide students with learning and processing in a digital form. Therefore, many digital processing tools have been introduced into the teaching field with the promotion of various government programs. However, when the teaching site is implemented, the digital processing tools seem to have a lot less dust than the traditional processing tools, but in fact, a large amount of fine aerosols are still generated during processing. Therefore, this study use different type of laser cutting machine from two schools in Taipei to use the optical aerosol detector produced by Alphasense for the detection of fine aerosols (PM2.5), and uses the dense plates and pressures commonly used in general teaching. Cree performs two processes of engraving and cutting to understand the generation of fine aerosols.
In this experiment, in order to understand the situation of fine aerosol generation, the pollution source test and the classroom operating environment test were designed. In the test results, the value of the fine aerosols in the pollution source test and the fine aerosol values in the classroom processing were higher than the EPA regulations. The safety value is 35μg/m3, in which the laser engraving average of the dense plate can reach 856.95μg/m3, and the acrylic value is 210.45μg/m3. Experiments were carried out to detect and confirm the magnitude of the decrease in the value of the fine aerosol after the operation, and it took more than one minute for the tested fine aerosol to fall below the safe range. Therefore, in this study, we also provide operational opinions on the processing operation mode of laser cutting tools during teaching. It is hoped that through the test results of this experiment, teachers and students will be provided with a better teaching environment.

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