For example, think about a situation in which your college is doing an experiment using some toxic chemicals. Let's say that they stumble and fall, the container breaks and some of the chemicals are sprayed on you! you need a protective equipment then.
safety aids help us to be safe from any kind of disaster and accidents. But when we get in an accident first aid help us to save our life before the arrival of the doctor
Hi! I'm not exactly sure what's needed here! ///: If you can add more detail, or explain what the question is, maybe I can help! Hope you have an amazing day! (: