1.30 Min before collecting saliva, rinse the mouth with clean water and fast after gargling. Relax your cheeks and gently massage cheeks with fingers for 15~30 seconds to produce saliva. Gently spit saliva into the funnel until the liquid saliva (non-bubble) reaches the height of 2.0 ml scale line. Saliva samples collected shall be free of impurities and sputum. Don't spit all over the vial.

2.Hold the saliva collecting tube in hand and keep it upright. Use the other hand to unscrew the cap of the preser vation solution vial. Slowly pour the preservation soluti on into the funnel, and keep the funnel and saliva collec ting vial upright so that the preservation solution could flow into the collecting vial completely. The preservatio n solution should not be eaten.

3.Keep the collecting vial upright, unscrew the funnel, take out the clean saliva collecting vial cap from the packing box, screw and tighten it on the saliva collecting vial. The vial caps have a choking hazard. Keep out of reach of children.

4.Turn the tightened collection tube upside down for 10-15 times to fully mix saliva and preservation solution.