Universal Headgear Strap: For many of ventilator mask use, such as ventilator, Australia breathing machine, Kaidi Tai ventilator, etc. Comfortable Fit: Adjust the strap to better fit your head.This headgear features no stitching, creating a smoother interior that is less likely to cause irritations or abrasions to the skin. to Use: This headgear can be washed repeatedly without fraying, curling, shedding, or other forms of degradation.For optimal fit and mask seal, headgear straps should be replaced every three months. Ventilator Headgear: Ventilator support, for fixing the mask to better treatment, the patient's fixed mask. effective absorption of the ventilator to provide air quality.Fits comfortably to promote an uninterrupted, full night of sleep . Universal 4-Point Headgear strap for Ventilator Mask: Breathable, absorb sweat, , allergy free, tasteless, long service life, not delaminating.Masks not included in the package. Color: Blue Material: Polyester Package Contents: 2 * Headgear Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.