NEWS RELEASE                                                                                     May 2020

Mask Webinar on June 18 to Launch Debate on Protecting Wearer as Well as Those at Risk

A webinar will be held on January 18 at 10:AM CDT to discuss and debate the proposition:

 Mask selection should be based on wearer needs first and then on needs of those at risk. 

This proposition is in conflict with certain ordinances which prohibit masks with valves.  It challenges conventional wisdom. However, the general premise that all individuals if protected by highly efficient masks could lead near normal lives would be of high importance to world economic recovery. The support or rejection of this proposition rests on determination of the following factors

Virus factors

  • The size and proliferation of aerosols
  • The percentage of virus in aerosols versus larger droplets
  • The viral load
  • Minimum infectious dose
  • Life of virus
  • Virus rejuvenation from dormancy
  • Creation of aerosols from viruses leaving surfaces

Mask Factors

  • Efficiency of various masks in removing viruses
  • Various mask media options
  • Wash ability
  • Efficiency reduction over time or with washing
  • Mask fit
  • Comfort
  • Breathability and oxygen deprivation
  • Valve options
  • Killing as well as capturing viruses

Wearer Factors

  • Age and immune response
  • Other medical conditions
  • Lung function
  • Activities


  • Virus load
  • Percentage of aerosols
  • Humidity
  • Air flow patterns
  • Benefits of capturing other contaminants

Insights are encouraged in advance and will be made available at the time of  the webinar. These insights should address the factors and what is already said about them in the background document.  The session will be in a discussion format with each of the factors reviewed as warranted.

To register for the webinar Click here

Send your comments to Bob McIlvaine This email address is being protected from spambots. You need JavaScript enabled to view it. 847 226 2391.