The earphones are designed to not hurt your ears even when worn for long periods of time, and the gathers and three elastic bands fit gently around your ears. Specifications: Normal
Material: Body and filter: Polypropylene, Ear hooks: Polyurethane and polypropylene, Nosepiece: Polyethylene
Size (mm): Approx. 90 x 175
Particle filtering efficiency (PFE): 99%
Bacterial Feedthrough Efficiency (BFE): 99%
Viral droplet capture efficiency (VFE): 99%
