Air purifier and operating method of the same

An air purifier comprising:

• a first airflow generator configured to generate an airflow such that outdoor air is introduced through a filter and filtered air is discharged;
• and
• a controller configured to:
• receive sensor information with respect to at least one of an image, a sound, or an air pollution degree of an indoor environment from at least one sensor,
• determine whether an indoor situation is a situation in which protection of a filter is necessary based on the sensor information,
• in response to a determination that the indoor situation is the situation in which protection of the filter is necessary:
• suspend an operation of the first airflow generator, and
• operate one or more ventilation devices.

A home automation server comprising:

• a network interface configured to communicate with an air purifier, one or more sensors, and one or more ventilation devices;
• and
• a processor configured to:
• determine whether an indoor situation is a situation in which protection of a filter is necessary based on sensor information from at least one sensor,
• in response to a determination that the indoor situation is the situation in which protection of the filter is necessary:
• transmit a signal for requesting suspension of an air purifying function to the air purifier, and
• transmit a signal for operating at least one ventilation device to the at least one ventilation device.