How to collect a saliva sample for testing purposes?

To collect a saliva sample for testing purposes, first, avoid eating, drinking, or smoking for at least 30 minutes. Then, use a saliva collection kit or a clean container to spit into. Make sure to collect enough saliva to fill the container to the specified level. Close the container securely and label it with your name and the date. Store the sample as instructed by the testing facility until it can be submitted for analysis.