Frequently Asked Questions

1. What size should I order?

We recommend large for men, medium for women, and small for children. Please check our size chart below.

• Small: W 6.7 in (17 cm) x L 3.9 in (10cm)
• Medium: W 7.5 in (19 cm) x L 5.1 in (13cm)
• Large: W 9.1 in (23 cm) x L 5.5 in (14cm)

2. What fabric is the mask made of?

The mask and filters are 100% cotton. Our copper ion fabric filter is a combination of cotton and copper ion fiber that has powerful antibacterial, antimicrobial, and deodorizing benefits. Our copper ion fabric filter has been certified by the Korea Apparel Testing & Researching Institute (KATRI).

3. How do I wash the mask?

Hand-wash the masks and filters with soap. Do not machine wash as it could damage the integrity of the fabric.

4. How often should the mask be washed?

We recommend washing the mask and filter at least once a day to keep the inner lining, the filter, and the outer surface clean.

5. Is it reusable?

Yes! You can reuse the mask after washing it.

6. Who is the mask for?

Anyone can wear our masks - they're a sustainable way to protect ourselves and our families. The masks are not intended for health-care workers.

7. When will I receive my order?

Shipping usually takes between 5-7 business days.

8. Do you ship internationally?

Yes, we can ship anywhere in the world with an additional shipping fee.

9. Can I return the mask?

No, all sales are final and cannot be returned given the current situation. If you receive a damaged product, please contact us at

10. How can I order in bulk?

For any orders over 50, please contact