Specification:Material: medical imported LycraSize: 70*16cmFeatures:Effectively absorb the ventilator and provide air qualityVentilator support for securing the mask to ensure better treatment, patient securing the maskSuitable for use with Philips respirator masksFeatures: breathable, absorbent, odorless, non-layeredInstructions for use: When wearing the four non-perforated buckles of the headbandThe two punch holes and two hooks of the mask will be worn on the hood to adjust the elastic suspension on the hooks, that is, the wearing is complete, and the user can rest and use it with confidence.Notice:1. Due to the influence of many factors such as display brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website.2. Please allow the data to be slightly different from manual measurement.Packing List:Headband*1