This lecture focuses on the importance of eye-washers in occupational safety and health. It begins with an introduction to the concept of eye-washers, emphasizing their role in emergency situations where eye exposure to harmful substances occurs. The instructor discusses the proper operation of eye-washers, highlighting the significance of pressing the red button to activate the device. The lecture also covers the necessary precautions and procedures to follow when using an eye-washer, ensuring that individuals are prepared to respond effectively in case of an accident. Additionally, the instructor provides insights into the maintenance and accessibility of eye-washers in various environments, reinforcing the need for regular checks to ensure functionality. The session concludes with a reminder of the importance of safety training and awareness in preventing workplace injuries related to eye exposure. Overall, this lecture serves as a crucial resource for understanding the proper use and significance of eye-washers in maintaining workplace safety.