The Neocoronavirus antigen self-test reagent self-test is primarily a screening test that involves sampling through a nasal swab and placing the collected sample into a test strip and waiting for a period of time to clarify the results. The Neo-Crown Antigen Self-Test Reagent is primarily a screening test for the Neo-Crown virus and is not a direct substitute for the Neo-Crown Nucleic Acid Test. People aged 14 years old can perform nasal swab sampling on their own. The self-tester first needs to keep the nasal passages clean and clean, and can use toilet paper to blow their nose. With clean hands, the outer packaging should be removed to avoid direct hand contact with the swab head. Subsequently, the head can be tilted slightly, and the swab can be entered from one side of the nostril with one hand, and inserted slowly along the bottom of the nasal passages successively for 1~1.5 cm, and rotated at least 4 times, and stayed for no less than 15 seconds. After collecting the sample, the nasal swab needs to be put into a sampling tube immediately and stirred well, and then the liquid is dripped vertically into the sample of the test card. After waiting for a period of time, the test result can be clarified by observing the results of C and T zones.