A communication system for an air treatment apparatus, the system comprising: an air treatment apparatus comprising a communication unit; a server; and a measuring apparatus, the communication unit comprising: a receiver configured to receive measurement data sent from the measuring apparatus separate from the air treatment apparatus, the measuring apparatus being movable; and a transmitter configured to transmit, to the server, the measurement data associated with specific information of the air treatment apparatus, wherein the specific information of the air treatment apparatus includes at least one of floor level information on a floor level where the air treatment apparatus is installed, positional information on a location where the air treatment apparatus is installed, or identifying information on the air treatment apparatus associated with information indicating the installation location of the air treatment apparatus, the measuring apparatus is a portable apparatus and is configured to be carried or self-propelled to a target space, to obtain a measured value representing how an environment in the target space is and to generate the measurement data indicating the measured value, and the target space is a space where the air treatment apparatus performs air treatment. an air treatment apparatus comprising a communication unit; a server; and a measuring apparatus, the communication unit comprising: a receiver configured to receive measurement data sent from the measuring apparatus separate from the air treatment apparatus, the measuring apparatus being movable; and a transmitter configured to transmit, to the server, the measurement data associated with specific information of the air treatment apparatus, wherein the specific information of the air treatment apparatus includes at least one of floor level information on a floor level where the air treatment apparatus is installed, positional information on a location where the air treatment apparatus is installed, or identifying information on the air treatment apparatus associated with information indicating the installation location of the air treatment apparatus, the measuring apparatus is a portable apparatus and is configured to be carried or self-propelled to a target space, to obtain a measured value representing how an environment in the target space is and to generate the measurement data indicating the measured value, and the target space is a space where the air treatment apparatus performs air treatment. a receiver configured to receive measurement data sent from the measuring apparatus separate from the air treatment apparatus, the measuring apparatus being movable; and a transmitter configured to transmit, to the server, the measurement data associated with specific information of the air treatment apparatus, wherein the specific information of the air treatment apparatus includes at least one of floor level information on a floor level where the air treatment apparatus is installed, positional information on a location where the air treatment apparatus is installed, or identifying information on the air treatment apparatus associated with information indicating the installation location of the air treatment apparatus, the measuring apparatus is a portable apparatus and is configured to be carried or self-propelled to a target space, to obtain a measured value representing how an environment in the target space is and to generate the measurement data indicating the measured value, and the target space is a space where the air treatment apparatus performs air treatment.