Failure to wear protective clothing when working with hazardous chemicals increases the risk of exposure to harmful substances, so it is strongly recommended to always wear appropriate personal protective equipment. However, if protective clothing cannot be worn in a certain situation, the following measures can be taken to minimize the risk, but these measures are not a complete substitute for protective clothing: 1. **Know the chemical information**: Thoroughly understand the properties, hazards and safe handling guidelines of the chemicals you are about to come into contact with. Check the safety data sheet (SDS) of the chemical. 2. **Limit contact time**: Minimize the time of direct exposure to the chemical, reduce the frequency and duration of contact. 3. **Maintain good ventilation**: Ensure that the work area has a good ventilation system to dilute the harmful gases or vapors that may be present in the air. 4. **Use alternative tools**: Use tools or equipment (such as pliers, long-handled brushes, etc.) to operate chemicals and avoid direct contact with the skin. 5. **Wash quickly**: If you accidentally come into contact with chemicals, rinse immediately with plenty of water and wash the affected area with soap. 6. **Avoid touching your eyes and face**: Try not to touch your face or eyes with your hands to prevent the spread of chemicals to sensitive areas through your hands. 7. **Handle spills promptly**: In the event of an accidental spill, clean up promptly with appropriate spill materials (such as absorbents) and follow handling procedures. 8. **Receive training**: Make sure you have received training on how to safely use and handle chemicals, and understand emergency procedures and emergency contact numbers. Although the above measures can reduce risks to a certain extent, they cannot completely replace protective equipment. Therefore, when exposed to hazardous chemicals, you should use complete personal protective equipment as much as possible, including protective clothing, gloves, goggles and masks.