| □Recycling technology of discarded masks has no market prospect |
| □Default of mask supplier or retailer |
| □Shortage of masks |
| □Sharp fluctuation of mask price |
| □Mask quality |
| □Other risks _________________ |
| □Don’t worry about any risks |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.