Which practice is discouraged for promoting safe environments when using chemicals?

Testing by sniffing products is discouraged for promoting safe environments when using chemicals because it poses significant health risks. Inhaling fumes directly from chemical products can lead to respiratory issues, chemical exposure, and other adverse health effects. Proper safety protocols emphasize the importance of using chemicals according to their labels, ensuring that individuals do not come into direct contact with potentially harmful vapors.

In contrast, the practices of labeling products appropriately, keeping areas well-ventilated, and storing cleaning supplies securely are all essential strategies for maintaining safety when handling chemicals. These practices help prevent accidents, ensure proper use, and minimize exposure to hazardous substances. Thus, avoiding the practice of testing by sniffing aligns with a commitment to safety and health in environments where chemicals are used.