Final answer:
For a cosmetological establishment, proper exhaust is crucial to remove fumes and maintain a safe environment; it must comply with local codes. In case of an accident, immediate safety actions and reporting are essential, and waste disposal should adhere to local regulations for hazardous materials.
Step-by-step explanation:
The exhaust requirement for a cosmetological establishment typically involves a ventilation system that effectively removes fumes and chemicals from the air to maintain a safe working environment. While specific regulations can differ by location, generally speaking, the exhaust systems must meet local building codes and occupational health standards. Proper air circulation and filtration can help in minimizing the inhalation of potentially harmful particles or vapors by both the cosmetologists and their clients. Regarding the question about applying cosmetics in a lab, if you mean a cosmetology lab specifically designed for practicing cosmetology, then the use of cosmetics there is usually allowed. However, traditional scientific or medical labs have strict protocols, and applying cosmetics may not be permitted to avoid contamination and ensure safety. In the event of an accident, immediate steps should be taken to ensure the safety of all individuals present. This includes reporting the incident to the appropriate personnel, providing first aid if necessary, and documenting the circumstances surrounding the accident for further investigation.