2pcs Mask + 30pcs Cotton Filters Disposable Dustproof Isolation Non-woven Kid Adult Respirator gray_for Children

2pcs mask + 30pcs filters, high efficiency anti dust.

Solid color, ergonomic design, comfortable to wear.

Made of non-woven and cotton, soft and breathable.

Description:

Product Name: mask

Pattern: solid color

Color: gray, black

Function: dust-proof

Mask style: hanging ear type

Material: non-woven + cotton

Quantity: 2pcs mask + 30pcs filter

Applicable age: 7-11 years old kids, adults

Shelf life: 2 years

Packing list:

2 * Masks

30 * Filters

Notes:
Of course, N95 has the best filtering effect, but even the worst gauze mask can achieve nearly 80% protection rate for particles over 10 microns, that is, about one tenth of the diameter of hair. In a random experiment involving 2800 influenza personnel in the United States, there is no significant difference in the influenza infection rate between wearing N95 mask and medical mask, so don't care about the complicated masks type.
Due to different personal measuring techniques, there might be 1-3cm error of the physical. Thank you!