Nucleic acid gas film test is a laboratory for experiments, which can be completed in a short period of time, and is a more convenient way of disposal in special circumstances. Part of the population inquires about nucleic acid test results will show the air film, the so-called air film test mainly refers to the sample of the test is completed in the air film laboratory, nucleic acid testing in the completion of the sample collection and transportation, need to carry out experiments to confirm the presence of new coronavirus in the sample, the need to carry out experiments in the laboratory. The air membrane can be inflated to create an indoor environment, usually in about an hour, and although similar in appearance to a tent, it is much more convenient. After completing an urgent nucleic acid test, the air membrane can be conveniently stored and transported after decontamination, which is a great convenience for the laboratory staff.