With the severe shortage of face masks right now, some hospitals and other health care facilities are asking the public to make face masks for them. This is far from ideal but better than nothing.
The pleated fabric masks are intended to be used over N95 masks so that the N95 masks worn by medical personnel can be used longer.
They can also be worn by the general public to help minimize touching of the nose and mouth, which we often do without realizing - as much as 20 times per hour. The tutorial below can be easily modified to include a pocket for a filter if desired.
Note that fabric masks alone don't protect against COVID19. The greatest protection for you and everyone around you, including the health care providers who are so overwhelmed right now, is to shelter in place and practice social distancing, remaining at least 6 ft apart, if you absolutely must leave your home.
How to Make a Simple Tie-On Face Mask (by Zelda P)
How to Make a Pleater (by Zelda P)
How to Make an Extender Strap to "Save the Ears" (by Melody H)