On the AirSense 10 and AirCurve 10 therapy devices, you will need to open the SD card cover to access to the SD Card. To remove the SD card, you need to push the SD card in to release it, and then pull it out. To insert the SD Card, push the SD card into the device until it clicks. We recommend that you insert the SD card when the device is turned off. It is also possible to insert the SD card when the device is powered but not delivering therapy. If the card needs to be removed to check data, please wait at least two minutes after stopping therapy before removing the SD card from the device. On all AirSense 10 and AirCurve 10 devices, there is a LED next to the SD card slot that indicates when it is safe to remove the SD card. When the LED is flashing, the device is using the SD card and the SD card should not be removed. You can safely remove the SD card when the LED turns off.