Hospitals are facing widespread shortages of personal protective equipment, or PPE, for health care workers. A Columbia University alumni association is raising money to purchase much needed N95 masks, seen here, gowns and other gear.

Hospitals are facing widespread shortages of personal protective equipment, or PPE, for health care workers. A Columbia University alumni association is raising money to purchase much needed N95 masks, seen here, gowns and other gear.

Hospitals are facing widespread shortages of personal protective equipment, or PPE, for health care workers. A Columbia University alumni association is raising money to purchase much needed N95 masks, seen here, gowns and other gear.

Hospitals are facing widespread shortages of personal protective equipment, or PPE, for health care workers. A Columbia University alumni association is raising money to purchase much needed N95 masks, seen here, gowns and other gear.