SARS‑CoV‑2 is highly transmissible and we don't have a sterilizing vaccine. People can't mask 24/7, so it's unfair to expect masks alone to contain that spread everywhere. But masks can help contain spread in specific spaces like healthcare settings. That makes masks worth it.

Every space where a majority of people mask makes that space more accessible to everyone, especially higher risk people. Everyone has the right to access essential spaces like healthcare and public transport safely, even if #COVID is spreading elsewhere.

While wearing a high quality mask like an N95 helps give people protection at an individual level, masks are far more effective when everyone wears one, because no tool is perfect, and viral load matters: the less of the virus that's in the air, the more safe it is for everyone.

We need to stop the all-or-nothing approach to public health. Wearing a mask sometimes is better than never wearing a mask. Some people wearing a mask is better than no one wearing a mask. Wearing any kind of mask is better than not wearing a mask at all. Every bit matters.

@luckytran
I keep a cloth mask with me just in case if I have to go into a crowded space or I feel that the risk level has crept above my poorly-defined comfort threshold, even if for only the five minutes of peak risk.