Health Canada has released a warning over homemade masks being used to protect against COVID-19.
According to the release, homemade masks are not medical devices and are not regulated, like medical masks and respirators, and their use poses a number of limitations.
Homemade masks includes those that are made of cloth (cotton), those with pockets to insert over other masks or filters, or those to be worn over N95 respirators in an effort to reuse respirators.
But they have not been tested to recognized standards and they may not provide complete protection against virus-sized particles.
Health Canada said the edges are not designed to form a seal around the nose and mouth, the fabrics are not the same as used in surgical masks or respirators, and they can be difficult to breathe through and can prevent you from getting the required amount of oxygen needed by your body.
Also, they may require frequent adjustment, increasing the amount of times your hands come into contact with your face and increasing the probability of infection.
Health Canada said while these types of masks may not be effective in blocking virus particles that may be transmitted by coughing or sneezing, they do not provide complete protection from the coronavirus because of a potential loose fit and the materials used.
The agency's guidance on preventing coronavirus includes guidance on wearing masks, if necessary, and includes the following:
- If you are a healthy individual, the use of a mask is not recommended for preventing the spread of COVID-19
- Wearing a mask when you are not ill may give a false sense of security
- There is a potential risk of infection with improper mask use and disposal
- They also need to be changed frequently
- However, your health care provider may recommend you wear a mask if you are experiencing symptoms of COVID-19 while you are seeking or waiting for care. In this instance, masks are an appropriate part of infection prevention and control measures. The mask acts as a barrier and helps stop the tiny droplets from spreading you when you cough or sneeze.
For more advice and resources, visit the Government of Canada COVID-19 website.
