The correct particle filter masks will obviously protect. The risk is that by providing that guideline you risk disruption in the supply chain.
There isn't enough world production and stock for the average joe to panic stockpile N95 masks.
The likely reason for this walking back in the recommendation is that 1) most people don't know mask sizes and how to fit a mask 2) if we have a limited stock then priority should be given to health workers who have to handle infected patients on a daily basis.
Comments
The correct particle filter masks will obviously protect. The risk is that by providing that guideline you risk disruption in the supply chain.
There isn't enough world production and stock for the average joe to panic stockpile N95 masks.
The likely reason for this walking back in the recommendation is that 1) most people don't know mask sizes and how to fit a mask 2) if we have a limited stock then priority should be given to health workers who have to handle infected patients on a daily basis.