The picture is 2 cartoon people wearing masks with viruses floating around them, and one person’s mask is askew and revealing the nose inappropriately. The text says: Why do people still get infected despite wearing masks? It is crucial to wear masks with fit. Small gaps between the mask and skin dramatically decrease the mask's filtration efficiency for aerosols. N95 respirators provide the highest virus filtration efficiency. Although different masks can provide protection to varying degrees, they cannot completely block airborne transmission. Implementing layering multiple aerosol precautions effectively reduces the risk of airborne transmission. There’s a message bubble and the virus says: I see some opportunity there to slip through the gaps, let's go and check it out! Produced by: Aerosol Science Research Center, National Sun Yat-sen University Taiwan. Copyright 2021 ASRC Reference C. C. Wang et al., Airborne transmission of respiratory viruses, Science 373, eabd9149 2021