Relieves Facial Irritation: these comfort pads remove marks and redness caused by headband masks and help avoid crushing, itching and skin irritation caused by rough areas of full face masks. Versatile Liner: this machine mask is flexible and can stretch or contract to fit most machines, for conditions such as sleep apnea, and can also fit different size masks and faces, you can adjust the mask liner to fit most full face mask. Relieves Facial Stress: this face pad sets a barrier between facial oils and the mask, prevents the silicone of the mask from breaking down, allows pores to breathe, and effectively relieves irritated skin; And the elastic fit does not come off easily without over tightening. Soft Material: this mask face cushion is made of colorful absorbent and breathable spandex fabric, which can act as a perspiration barrier between the mask material and the face, reducing sweat on the face and keeping your face dry; At the same time, this mask can be repeatedly washed, not easy to wear, curl or fall off; And non stitching process, the contact surface is smooth, avoiding skin abrasion or irritation. Adequate Number of Packs: 6 packs supplies mask liners are included in the package, each with a precut hole to fit most sizes of ventilators, plenty of pads to meet your daily use and replacement needs, you can also give them to your friends or family members. Ear Loop closure.