Which of the following is a safety precaution during fumigation?

Ensuring proper ventilation is a critical safety precaution during fumigation because it helps to reduce the concentration of toxic gases in the air, protecting both the applicators and the surrounding environment. Adequate ventilation allows for the dispersal of harmful fumes, minimizing the risk of inhalation or other exposure-related health issues. This practice is essential to maintain a safe working area and ensure compliance with safety standards and regulations.

The other options do not contribute to safety during fumigation. Increasing exposure time may raise the risk of harmful effects to humans and the environment, while standardizing the fumigation compound does not address immediate safety concerns during the application process. Additionally, using equipment without maintenance can lead to malfunctions or failures, posing safety hazards rather than ensuring a secure fumigation environment.