Finding mask a daunting task amid coronavirus. Should you make your own?

While we don't have a lot of research on the effectiveness of homemade masks in preventing the spread of infection, scientists who study airborne diseases can offer some guidance.

To mask or not to mask? For the past few months, public health officials have advised that healthy people should not wear masks as a way to protect themselves from coronavirus. But as we learn more about the virus, more experts are challenging the official guidance and saying that there is probably some benefit to covering our faces in public.

But for now, commercially made masks are virtually impossible to find. Many people have hoarded masks in recent months, and everyone agrees that any available supply of medical masks should be reserved for hospitals and emergency workers. That means if