Question

This is a safe method of testing the odor of a chemical.

Answer 1

the safest method is to waft the chemical.

Put the flask away from your nose and put your hands waft it.

Answer 2

The safest method of testing the odor of a chemical is called wafting.

Explanation: In a laboratory a direct sniff of the chemical can cause harm to the mucous or lungs. So it is important to use a proper technique to avoid damage. One should cup his/her hand over the container and waft the air towards the face. Wafting is done to get less concentrated amount to avoid damage.