Air purifiers effectively reduce the viral load in the air, thereby mitigating transmission risks, particularly when there's prolonged exposure to airborne pathogens. They can lower levels of viruses, bacteria, and mold spores but may not be effective in immediate close-contact scenarios, such as sneezing nearby. While some people resist using purifiers due to concerns about plants, studies show certain plant species can remove volatile organic compounds (VOCs), but purifiers remain necessary for comprehensive air quality improvement.