According tomedia reports, the new coronavirus is so difficult to control because many people still ignore the health measures taken to limit transmission. Wearing a mask, washing your hands and keeping a social distance can all reduce the spread of the virus. In addition, avoiding indoor spaces and ventilated homes and offices as much as possible can further reduce the risk of infection.
These measures must be respected at all times and carried out simultaneously. Even wearing a mask and washing your hands is not enough if you don’t keep enough social distance. Unfortunately, from the moment health experts began to advise the public to wear masks, masks became a political issue. Anti-maskers have come up with a number of reasons for ignoring the mask requirement, including a pointless statement.
Some people say wearing a mask limits oxygen intake and leads to hypoxia. Long before the pandemic, there was evidence that masks do not reduce oxygen levels. Paramedics were in the hospital — including wearing masks during lengthy operations — but they did not experience hypoxia. Masks allow oxygen to pass through, but at the same time block pathogens in the air. Doctors and nurses wear masks to protect patients during surgery, but also to protect themselves.
Doctors have also conducted experiments to prove that masks do not affect oxygen co-operation. A doctor wears multiple masks at the same time. The other man ran a marathon with a mask. They all show that oxygen saturation does not decrease at all. Now, a more scientific study may be able to convincing those who still don’t believe that masks are safe.
Scientists from McMaster University in Canada chose to conduct experiments on older people to further demonstrate that masks are completely safe in terms of oxygen content. This is because older people are more likely to have medical problems that may be at high risk of death after contracting COVID-19, and wearing a mask has the greatest benefit for them.
The 25 participants are understood to have been recruited by researchers from a retirement apartment in Ontario between July 27 and August 10. The researchers provided all volunteers with three layers of disposable non-medical masks and the same type of portable pulse oxymedicus to measure pulse and oxygen saturation.
The scientists asked volunteers to measure their oxygen levels before, during and after wearing masks. Participants were told to take measurements every 20 minutes 1 hour before wearing a mask, 1 hour after wearing a mask, during which time they were either resting or carrying out daily activities.
It is understood that the average age of participants is 76.5 years, including 12 women and 13 men. Nine of the volunteers had at least one disease. For the study, the researchers selected volunteers with co-diseased heart or respiratory conditions that could cause breathing difficulties or hypoxia, as well as people who were unable to remove masks without help.
In the end, the scientists concluded that the combined oxygen saturation before wearing a mask was 96.1 percent, 96.5 percent during the mask and 96.3 percent after wearing a mask. When wearing a mask, the oxygen content is not less than 92%. The researchers wanted to know if wearing a mask reduced the oxygen saturation of the selected group by 2 percent, but that didn’t happen. They noted that while the 3 per cent decline was considered an important clinical indicator, they chose 2 per cent as an indicator because of the lower baseline for older persons. They concluded that the mask would not prevent oxygen co-operation and would not lead to hypoxia.