YAMASHIN Filter Mask capture efficiency

Decorative and cloth masks cannot provide fine particulate filtration comparable to YAMASHIN Filter Mask.
A filter’s capture efficiency determines mask performance.

The general non-woven disposable masks made by other companies can’t capture fine particles via their physical structures. Instead, they rely on static electricity. But moisture weakens static electricity. Exposure to moisture in exhaled air neutralizes most static charge and weakens capture performance accordingly.

Rather than relying on static electricity, YAMASHIN NANO FILTER captures fine particles through structural properties (its high-density structure). That means it retains nearly all of its capture performance even after repeated handwashing.

Sustained capture efficiency

Sustained capture performance protects loved ones 24/7.

General non-woven disposable masks that rely on electrostatic charge have lower initial capture efficiency. Prolonged use and/or exposure to moisture in exhaled air further degrades their performance. In contrast, YAMASHIN Filter Mask exhibits minimal deterioration in capture performance. It maintains 97% of its performance even after being hand-washed using a pressing motion five times. Instead of relying on static electricity, it relies on its physical structure, a high-density structure with innumerable tiny voids, to capture nano-scale particles.