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Spit the liquid saliva( not the bubbles) into the collection funnel. If you notice excess bubbles, eliminate them by gently tapping the tube on a hard surface. The recommended volume of saliva to provide is about 2 ml. Your saliva sample should be just above the fill line.

The full saliva sample should be collected within 30 minutes and the funnel contents should be released into the tube immediately. Waiting longer than 30 minutes may decrease the yield and quality of your DNA.

Contraindications, Precautions, Warnings and Suggestive Explanations
1.  The cover of the sampling tube should be tightened timely to avoid the occurrence of bubbles in the sample after sampling with the Viral Transport Medium Tube (Saliva DNA sample collector);
2.  This product is only used for the collection of saliva samples, and the sampling procedures should be strictly followed in accordance with the instructions;
3.  30 minutes before the collection of saliva samples, please rinse your mouth with water and fast after gargling. If the sample preservation solution is accidentally splashed into the eyes or skin, rinse immediately with water;
4.  Do not use the product after expiration date or if the package is damaged.

Remember to remove and discard the funnel lid , then screw on the tube cap securely  and shake well ( for 10 seconds) to mix before storage,mailing or processing