Abstract In this study. emission rates of aerosols emitted by professional singers were measured with a laser particle counter under cleanroom conditions. The emission rates during singing varied between 753 and 6093 particles/sec with a median of 1537 particles/sec. Emission rates for singing were compared with data for breathing and speaking. https://www.bekindtopets.com/great-choice-Sporn-Non-Pulling-Mesh-Harness-Small-top-grab/