Features:
The use of food-grade high-quality materials, , , and , men, women, and can rest assured to wear.
Activated carbon and electrostatic filter double conservation, and can be used freely, suitable for people with high quality requirements.
Applicable scene: suitable for formaldehyde, , , automobile exhaust, haze, and other harsh environment and heavy pollution weather conservation.
Family mixed-size package, each with a pair of S-and M-L sizes, with a built-in filter and an additional two pairs of replacement packages.
Easy to carry, equipped with storage box, easy to wear at any when you are away from home, there is no need to worry that there is no place to store it.

Specification:
Item: Invisible Nasal Filter
Material: Silicone,ABS
Shape: Narrow; Round (Optional)
Narrow Size: S: 9*15mm; M: 11*16mm; L: 11*19mm
Round Size: S: 11*14mm; M: 12*14mm; L: 13*15mm
Package Size: 8.5*4.5*4.5cm / 3.35*1.77*1.77in
Package Weight: 35g / 1.23oz

Package List: W17566-1
1 * S Invisible Nasal Filter
1 * M Invisible Nasal Filter
1 * L Invisible Nasal Filter
3 * Replacement Filters
1 * Tweezers