Influenza, commonly known as flu, is a highly contagious disease. Evidence supports the transmission of the disease is by direct or indirect contact or by droplet and airborne transmission. Diagnose of influenza infection is made by isolating the virus or detecting it by antigen detection or nucleic acid testing methods. Our innovation is to apply carbon nanotube coated with H1N1 aptamer as a biosensor component and embed it into mask for detection of the influenza virus. Before achieving this goal, we firstly use our biosensor to detect H1N1 contained droplet in the laboratory for simulation. Based on its result, we will take further steps to accomplish the final goal.