From 7fbeedc9991d74ef4d361667b3b0a1aba48e6178 Mon Sep 17 00:00:00 2001 From: Camron Blackburn <camron.blackburn@cba.mit.edu> Date: Thu, 19 Mar 2020 02:35:04 -0400 Subject: [PATCH] Update README.md --- README.md | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 7b3d158..bdd4141 100644 --- a/README.md +++ b/README.md @@ -8,10 +8,11 @@ - nonsocomial spread of SARS-CoV-1 was linked to aerosol-generating medical procedures [^stability] - "The virus aerosol deposition on protective apparel or floor surface and their subsequent resuspension is a potential transmission pathway and effective sanitization is critical in minimizing aerosol transmission of SARS-CoV-2." [^aerodynamics] - airborne SARS-CoV-2 found at 0.25-0.5um and <2.5um, but not coexisting so potentially different formation mechanisms [^aerodynamics] - - air samples in various location collected and filtered through [cascade impactor](https://www.skcinc.com/catalog/index.php?cPath=300000000_302000000_302400000_302400200) then tested for presence of SARC-CoV-2 + - air samples in various locations collected and filtered through [cascade impactor](https://www.skcinc.com/catalog/index.php?cPath=300000000_302000000_302400000_302400200) then tested for presence of SARS-CoV-2 -  [^aerodynamics] - "We believe one direct source of the high SARS-CoV-2 aerosol concentration may be the resuspension of virus-laden aerosol from the surface of medical staff protective apparel while they are being removed. . . We hypothesize the submicron aerosol may come from the resuspension of virus-laden aerosol from staff apparel due to its higher mobility while the supermicron virus-laden aerosol may come from the resuspension of dust particles from the floors or other hard surfaces" [^aerodynamics] +so we're targeting filter material able to block particles with minimum ~0.25um diameter and high flow rate for comfortable breathing ### mask characterization metrics - filtration efficiency: percent efficiency of upstream colony-forming units (cfu) to downstream cfu [^DIYmask] @@ -29,7 +30,7 @@ - Collison nebulizer - generally a pneumatic atomizer [^collisonNebulizer] - mobile henderson appartus 1968 [^henderson] -performance difference between pleated hdrophobic filters and electrostatic filters?? +performance difference between pleated hydrophobic filters and electrostatic filters?? ### Resources [^DIYmask]: University of Cambridge [DIY mask efficacy testing](https://www.researchgate.net/publication/258525804_Testing_the_Efficacy_of_Homemade_Masks_Would_They_Protect_in_an_Influenza_Pandemic) -- GitLab