The ventilator 4S store (Dongguan point), Wanlu Communication Technology Building, has good after-sales service and high cost performance. It can be sold or rented. It would be better to go to the physical store to have a look. The popular treatment option is to wear a non-invasive home ventilator. The recommended brand of ventilator is the American Philips Respironics ventilator. Genuine licensed products have an all-Chinese interface for easy and concise debugging, and very good human-machine synchronization.