Choose a right mask, you should care of below points. <br />Patent 360 degree silicone sealing design. Ergonomic streamlining, fit face and seal well. <br />Intersected elastic head strap for better wearing. <br />Head strap is adjustable to loose or tighten for comfortable wearing. <br />Widened head strap without pressure <br />3D dome, breath and communicate smoothly. <br />Exhalation valve to reduce heat and moisture. <br />N95 rating, filtration efficiency is ≧95% for non-oil particles at 0.3 micron.
