呼吸防护__培训课件.pptVIP

使用说明 可更换式面罩的更换 当呼吸阻力明显增加时，更换防尘过滤元件—滤棉； 当面罩密封垫变形、开裂、老化时更换面罩本体； 当呼气阀、吸气阀、头带、垫片损坏、丢失时，用备用件更换。 可更换式面罩的维护 每天清洗面罩本体： 使用一般的肥皂水，不建议使用洗手液（含羊毛脂等润肤成分使面罩老化）；不可使用洗衣粉清洗。 温度不宜超过49℃； 不宜用硬毛刷刷洗； 风干，避免日照，避尘保存； 禁止清洗过滤元件，如2091,7093滤棉(盒)； 禁止吹扫过滤元件，如2091,7093滤棉(盒)； * “To discuss respiratory protection and facilitate our comprehension, we will divide the subject into four parts.” “What kind of respirator should be used in a given work environment? We can only answer this question when we know what type of contaminants are present in the environment. So we need to: 1. Identify the Respiratory Hazards “So, first step is to identify and classify what type of CONTAMINANTS are present in the work environment that can harm us. “It is important to know what EFFECTS these contaminants cause to our health. We need to: 2. Understand the contaminants’ effect on workers health “By knowing the contaminants and their effects on health, we can select the APPROPRIATE RESPIRATOR for the situation.” 3 Select the appropriate respirator “And finally, we involve you and TRAIN YOU on how to correctly don and use a respirator, conduct fit tests to assure a good respirator fit to you, instruct you on how to take care of your respirator, show you when it must be changed, and help answer any questions you may have about your respirator. So it is important to: 4 Train in proper respirator use and care * 先看一看洁净空气的组成。空气中含有78％的氮气，它无色无味；还含有21％的氧气，它是人赖以生存的气体，也是无色无味的；空气中还含有少量惰性气体（氦、氖、氩、氪、氙、氡气）。另外水蒸汽也是空气中的一个组成，往往用相对湿度表示，湿度越高，空气中水的含量越高； * “The most common airborne contaminant is dust. It is formed when a solid material is broken down or ground up by some application of mechanical action or force. Dust particles can be very small. The smaller the particle is , more time it will remain suspended in air, thus increasing the chance of being inhaled. Some dusts stay suspended in air for hours when very finely divided. Larger particles can settle out of the air in minutes.” “Some common examples of toxic du