样本视频成绩单
以下是为此模块提供的视频示例的成绩单：
作为油的油漆干燥，它们将溶剂烟雾释放到大气中。这些溶剂是挥发性有机化合物（VOC），其增加了地层臭氧并有助于烟雾。因此，他们的使用受到EPA和许多州的限制。VOC也易燃，可以有助于一些健康问题，包括头痛和恶心。水性乳胶涂料还可以含有负面健康效果的VOC和其他化学品。因此，当涂上内表面或封闭区域时，确保使用低VOC或NO-VOC涂料进行足够的通风并考虑。在开始之前，打开窗户和门，并安装风扇以推动外面的烟雾。If you have enough openings, use additional fans to pull fresh air in. If you can’t adequately ventilate the space with windows and fans, wear a respirator designed for organic vapors while you paint and don’t let anyone enter the space until after the paint has dried completely. It is also a good idea to take more frequent breaks to take in some fresh air. Low-VOC and no-VOC paints have been formulated without solvents, so they are better for the environment and have less odor than VOC-containing paints. These paints are another good option for painting projects in areas where ventilation is a challenge. As paint dries, it continues to release solvents, water, and other chemicals into the air. This is why it is important to keep ventilating an area after you finish painting, to prevent the accumulation of irritating and/or harmful fumes. It takes 24 to 48 hours for a freshly painted room to dry completely. Even in areas with low levels of ventilation, like a basement, it is important to keep fans running during drying to circulate the air and help push fumes out.
