A recent review published in International Journal of Indoor Environment & Health has given insights into the spread of SARS-CoV-2 through aerosols. Highlights of the review Aerosols or droplets affecting the respiratory tract are classified into three types: small particles (0.1-5 µm), large particles (5-100 µm), and ballistic drops (>100 µm) Particles that carry the virus and have a diameter less than 20 µm can travel up to one meter from the source of emission The spread of the virus in an indoor setting is much faster compared to an outdoor setting Transmission of aerosol particles depends on differences in particle size, distance from the source, rate of particle deposition on the surfaces, shrinking rate of the particle, and particle motion.
Particle size greatly affects the qualitative and quantitative emission of aerosols and regional deposition. Emission rates of behaviors that…