Precautions to be taken while using chemical pesticides are as follows:

1. Read and follow the label instructions about the pesticide, including its intended use, application rate, personal protective equipment(PPE) requirements and storage instructions carefully. Follow the label instructions closely to ensure safety and effective use.
2. Cover the mouth, nose and eyes properly by wearing protective goggles, gloves, clothing, etc. while applying insecticides.
3. Avoid using jugs, food containers, drinking cups, etc. to store, transport or mix chemicals.
4. Study the instructions given along with the chemicals cleansing agents and pesticides and clearly follow the instructions.