High-quality air purifiers equipped with true High-Efficiency Particulate Air (HEPA) filters can successfully capture and remove microscopic airborne viruses and viral aerosols from circulating indoor air. Certified HEPA filters are scientifically proven to trap at least 99.97 percent of particles down to 0.3 microns, and they can easily capture even smaller sub-micron viral particles because those pathogens typically hitch a ride on larger droplets and dust fragments suspended in the air. While air purifiers significantly reduce airborne transmission risks within a room, they cannot disinfect stationary surfaces where large respiratory droplets have already landed, meaning they must be paired with regular surface cleaning and disinfection protocols.
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