Medium  6 - 8

This enhances your performance and provides joint pressure relief

6 (1-10 Scale)

The ceramic balls are much lighter

11 Open Vents

Airhole Ergonomic Daily Face Mask Shibuya 3-Pack XS Medium 6 - 8Multiple layers of fabric means less chance that respiratory particles can pass through the mask. Thicker, denser fabrics do a better job than thinner, loosely woven or knit fabrics. Trying to blow out a candle can illustrate how respiratory particles can travel through different types of mask fabrics. Please note that our masks are not designed as a replacement for N95, surgical or medical grade masks. Due to the nature of the product this mask is