den 18 mars 2020

Because of our commitment to clean air, AAF wants to arm you with information on this latest threat. This document is intended to serve as a reference on the 2019-nCoV outbreak.

However, for the most up-to-date news and updates, please visit the Centers for Disease Control and Prevention website at or the World Health Organization website at


Coronavirus COVID-19 Global Cases by Johns Hopkins CSSE

Case numbers updated as of this publication. For the most current case update, visit:

 Coronavirus Hotspot Map


What precautions can be taken?

  • Stay at least 3¼ feet (1 meter) away from people who are sick.
  • Stay home when you are sick.
  • Seek medical care if you are coughing, sneezing, and running a fever.
  • Wash your hands often with soap and water for at least 20 seconds.
    • If soap and water aren’t available, use an alcohol-based hand sanitizer with at least 60% alcohol.
  • Avoid touching your eyes, nose, and mouth with unwashed hands.
  • Cover your cough or sneeze with a tissue, then throw the tissue in the trash.
  • Clean and disinfect frequently touched objects and surfaces using a household cleaning spray or wipe.


Sneeze Zone


Indoor Air Quality

The world’s leading health-related organizations consider PM10, PM2.5, and PM1 fine dust fractions as the most important and dangerous for humans.

Particulate size lung penetration

Particulate Size and Air Filtration

Our ability to measure and identify particulate and airborne molecular contamination changes the way we think about air filtration. Because these particles are so small, viruses and other contaminants can penetrate deep into the lungs and bloodstream, where they pose a grave threat to human health. Fortunately, proper air filtration has been proven to reduce the spread of viruses and other contaminants. For example, research has demonstrated that appropriate air filtration limits the pass-through of virus particles, which frequently hitch a ride on larger particles, into downstream areas. This result may be achieved with suitable ISO ePM 1 ranked air filters, as well as with high-efficiency particulate air (HEPA) filters, when installed in suitable air handling systems.

Airborne particulate size comparison