DOST MASK PRODUCTS DO NOT HURT EAR. The biggest complaint of mask users is the irritation of the ears during long-term use. Dost Mask has eliminated this problem with specially textured ear-friendly elastics. It is produced with 3-layer non-woven fabric that facilitates breathing. The nose wire ensures a perfect fit to the face. Meltblown filter keeps airborne viruses, bacteria and particles away from the mouth and nose area. While providing a perfect fit with its dimensions and wire, the meltblown filter provides high protection. It has been tested and approved by independent laboratories to provide 98% filtration.