| abstract |
A server 20 for monitoring of the state of use of an oxygen concentrator 10 that concentrates oxygen in air and supplies it to a user, comprises a communication unit 25 , and a processing unit 21 that uses the communication unit 25 to receive operation data indicating the state of operation of the oxygen concentrator 10 and usage data for the state of use by the user using the oxygen concentrator 10 , measured by a measuring apparatus 11, 12 , while also generating message information when either or both the usage data and operation data fail to satisfy the monitoring conditions, and sending the message information together with the usage data and operation data, using the communication unit 25. |