One of the reasons the CDC’s Redfield gave for potentially changing the help with Custom Mask is the coronavirus might be spread when we are asymptomatic, and for that reason having everyone covering their faces — as has been the norm in Hong Kong along with other parts of Asia since January — may help rein in transmission.
These are also an issue and may be used only by medical workers. Sometimes called surgical masks or procedure masks, these masks are the types rectangular shaped coverings (often pleated) that include elastic ear loops. Medical masks are constructed of a paper-like nonwoven material, and they are often presented to a coughing patient waiting to see a health care provider. Compared to the N95 mask, a medical mask filters about 60 to 80 percent of particles and, in accordance with the Food and Drug Administration, mostly blocks “large-particle droplets, splashes, sprays or splatter that will contain germs.”
Dr. Adams’ recommendation is dead wrong. It does not understand consumer psychology and, throughout time, will influence have cost thousands of lives. While the standard advice to keep home and wash the hands still stands, a lot of people operate in essential services outside the home and most people should head outdoors every now and then for groceries along with other supplies. Dr. Adams makes three arguments which cause one terribly wrong conclusion.
This is the first RCT on Face Mask use to be conducted and supplies data to tell pandemic planning. We found compliance to be low, but compliance is affected by perception of risk. In a pandemic, we would expect compliance to further improve. In compliant users, masks were highly efficacious. A larger study is required to enumerate the real difference in efficacy (if any) between surgical and non-fit tested P2 masks.