- 1) Do not eat, drink, smoke or chew gum for 30 minutes before collecting samples.
- 2) The swab tips should not come into contact with any surface other that the inside of the cheek at any point before, during or after collection
- 3) Move the swab up and down while also rotating. It's very important to rotate the swab with your fingers.
- 4) Allow the swab to dry before storing. At least one hour.