Infectious aerosols are very fine droplet nuclei filled with hundreds to thousands of viruses. These aerosols do not fall immediately to the ground after sneezing or coughing, as infectious droplets do, but in some cases remain in the air and circulate for hours. Aerosols are produced primarily during loud speaking, singing or sports. Keeping a distance and simple everyday or surgical masks do not provide sufficient protection against infectious aerosols. Only tight-fitting FFP2 masks, sufficient ventilation and powerful air purifiers such as the AiroDoctor can minimize the risk of infection.

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