What should you do while spraying an insecticide labeled with the signal word "Warning" upon smelling pesticide?

When an insecticide is labeled with the signal word "Warning," it suggests that the product has moderate toxicity and may pose a risk if inhaled or absorbed through the skin. If you smell the pesticide while spraying, it indicates that you may be exposed to potentially harmful levels of the chemical. Therefore, the appropriate action is to change the respirator cartridges, as they are designed to filter out harmful substances from the air you breathe. This step is crucial in ensuring that you are protected from inhaling any dangerous chemicals that could compromise your health.

Taking this action demonstrates an understanding of proper safety protocols when working with hazardous materials. It is important to ensure that your respiratory protection is functioning effectively to maintain a safe working environment and minimize exposure to toxic pesticides. Other options, such as closing the container, leaving the area, or continuing to spray, do not adequately address the immediate concern of inhaling pesticide vapors and do not enhance your protection while working.