Cost: $1 for a candle, cost of your cloth mask
If you are unsure if your cloth mask provides an adequate level of filtration, try this simple hack using just a candle:
Wear your mask properly so that it covers your face from the bridge of the nose to the chin
Light a candle and place it on a flat surface
Try to blow out the flame while wearing the mask
If you are unable to blow the flame out, your mask is adequate
If you are able to blow out the flame, your mask isn’t providing enough resistance to airflow
This means the mask doesn’t provide enough filtration to prevent virus particles from passing through it
Discard it and find a mask that fits properly
Masks with 2–3 layers of cloth are recommended