According to research by from German, American and Indian laboratories, Vietnam's Wakamono masks are capable of killing 99% of some viruses, including nCoV

The lecturers and students of Lam Dong Medical College have launched a free-of-charge  “Face Mask ATM” to help local people in Da Lat city fight the COVID-19 pandemic. The "mask ATM" in front of the college's gate  can provide about 300 masks to tourists and locals every day.