Reducing the Spread of Airborne Pathogens and Winter Illnesses with Air Filtration

18–22 minutes to read

With COVID restrictions lifted, people are returning to work and school, and spending more time in restaurants and other venues. As people come in closer face-to-face contact in inside environments, they share the same air, increasing the risk of transmission of viruses and bacteria.

Adults get two to four colds annually, with people in the United States suffering from 1 billion colds per year.1 In many areas of the country, more people gather indoors to escape the cold of the winter months. This further increases the rate of viruses passing between individuals.

When someone who is sick or has a virus sneezes, coughs or just exhales, they expel mucus and saliva droplets that travel in the air and can land on or be inhaled by others standing nearby. That’s called droplet transmission. People don’t need to touch another person with a virus to catch it. They can be infected when nearby – typically less than six feet. One sneeze from an infected individual can spread about 40,000 liquid droplets that may contain pathogens.2 Those droplets can travel up to 150 feet per second, over 100 miles per hour.

When droplets travel as aerosols, they can linger in the air or travel on air currents for long periods of time before contacting a person. Airborne pathogens can also land on surfaces, spreading infection when people touch them.

Besides the common cold, aerosol transmissions can cause winter illnesses such as the flu, which can have deadly results. According...

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