In case you think you don’t need a mask or believe that masks don’t work to prevent the spread of COVID-19, read this. — via healthing_ca
After months of telling Canadians that masks don’t work in protecting people from COVID-19 – and that no data showing their effectiveness is available — the tide has shifted. Aby researchers from Hong Kong University and those at the University of Maryland found that wearing a mask lowered the rate at which the virus was transmitted through airborne particles or respiratory droplets by 50% and up to 75%. Other recentMyth: Masks allow carbon dioxide to accumulate, and can make you sick.
Hypercapnia is the medical term for breathing in CO2. Mild symptoms include dizziness, lightheadedness, fatigue, headache, feeling short of breath and disorientation. A representative from the U.S. Centers for Disease Control and Prevention recently told Reuters: “The CO2 will slowly build up in the mask over time. However, the level of CO2 likely to build up in the mask is mostly tolerable to people exposed to it.
in the journal Aerosol Science and Technology suggests that these airborne particles can also hang in the air for some time. So, covering your face with a mask can contain these particles and prevent their spread.than a surgical mask and cloth mask because it can filter out both large particles and 95% of very small particles. Surgical masks and cloth masks can prevent a person from breathing in larger droplets but not tiny ones.
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