The INSPACK filter is a multifunctional compatible disposable product, suitable for some popular CPAP/BiPAP machines such as ResMed and Dreamstation, like the DreamStation series, Systemone series, etc. Installation and replacement are quick and simple, and there are specific steps for the connection of the heating tube. It can effectively filter dust, pollen and other particulate matter, with a low flow resistance. At about 5.6 millimeters of water column at 30 liters per minute, it does not affect the performance of the machine and ensures smooth airflow throughout the night. It is recommended to replace when the white filter material appears dirty, and it can be used on average for 4 to 6 weeks, and the specific duration depends on the environment. The product is in a convenient package, including 12 disposable filters, each of which is sterilized and individually packaged and sealed. For machines with integrated heating tubes, there are relevant instructions on the connection method. When using it on a machine with a humidifier and finding that the pressure and airflow are affected, the filter can be removed and allowed to dry completely before reinstalling on the system or discontinuing use completely.