Saliva Collector provided by STE-Mart consists of a saliva collector (collection funnel + sample collection tube) and sample collection tube cap. The collection process is painless and non-invasive, and can be collected at home, which is more convenient and free. The humanized design of the collection funnel fits the human mouth structure and is easy to operate. The cap is equipped with a leak-proof O-ring to seal and prevent leakage.