Tag: facemask
Research: Surgical masks only filter about 10% of aerosol droplets
A new Canadian study has shown that most common face masks, primarily due to problems with fit, filter about 10 per cent of exhaled aerosol droplets. More...
FFP2 masks more effective at preventing Covid infection than vaccines
Max Planck: “When both wear a surgical mask, while the infectious is speaking, the very conservative upper bound remains below 30% after 1h, but, when both wear a well-fitting FFP2 mask, it is 0.4%”
We find, for a typical SARS-CoV-2 viral load and infectious dose, that social distancing alone, even at 3m between two speaking individuals, leads to an upper bound of 90% for risk of infection after a few minutes. More...
Finland: Healthcare worker PPE guidance upated following Delta variant outbreak in hospitals
Finland’s PPE guidance for healthcare workers (HCW) has been updated following the Kanta-Häme hospital Delta variant outbreak. More...
Randomised study finds no evidence that facemasks offer any protection from coronavirus whatsoever
Copenhagen experts recruited 6,000 volunteers in the spring — before masks were mandatory there — and split the them into two groups, with half wearing masks in public and half not. More...