Nanofiber antivirus mask

What is Nano Silver?
Nano silver has the size from 1-100 nanometers
Typically, the size is about 25 nanometers
Nano silver particles have big surfaces helping to increase their interactions with bacteria or fungi, maximizing the capacity, and immediately kill bacteria after exposure.

Nano mouth masks are upt to 30 times washable with high temperature resistance

Kills more than 650 types of bacteria
260 types of harmful microbes
Fast effectiveness, no irritation, no allergy
No unsuitable odors
Washable up to 30 times
Flexible application

Delivery time: 1-3 working days
Minimum order quantity: 100pcs