A method of status notification, characterized in that the method comprises: acquiring (SI01) usage information of an air purifier, the usage information comprising at least every power-on time point and power-off time point, or the usage durations therebetween, of the air purifier; monitoring the environment around the air purifier to acquire environmental data of the air purifier, wherein the environmental data comprises particle matter concentration and/or pollutant concentration around the air purifier; calculating (S102) current consumption of the air purifier usage lifetime according to the usage durations of the air purifier; and alerting (S103) about a current status of the air purifier when the consumption reaches a preset consumption alerting threshold; wherein, the calculating current consumption of the air purifier usage lifetime according to the usage information of the air purifier comprises: determining environment weighted values for every usage duration, according to the environmental data of the air purifier within every usage duration; obtaining an actual usage duration of the air purifier by accumulating products of every usage duration and corresponding environment weighted value of the air purifier; and calculating the current consumption of the air purifier usage lifetime according to the actual usage duration of the air purifier and a lifespan of the air purifier. acquiring (SI01) usage information of an air purifier, the usage information comprising at least every power-on time point and power-off time point, or the usage durations therebetween, of the air purifier; monitoring the environment around the air purifier to acquire environmental data of the air purifier, wherein the environmental data comprises particle matter concentration and/or pollutant concentration around the air purifier; calculating (S102) current consumption of the air purifier usage lifetime according to the usage durations of the air purifier; and alerting (S103) about a current status of the air purifier when the consumption reaches a preset consumption alerting threshold; wherein, the calculating current consumption of the air purifier usage lifetime according to the usage information of the air purifier comprises: determining environment weighted values for every usage duration, according to the environmental data of the air purifier within every usage duration; obtaining an actual usage duration of the air purifier by accumulating products of every usage duration and corresponding environment weighted value of the air purifier; and calculating the current consumption of the air purifier usage lifetime according to the actual usage duration of the air purifier and a lifespan of the air purifier. determining environment weighted values for every usage duration, according to the environmental data of the air purifier within every usage duration; obtaining an actual usage duration of the air purifier by accumulating products of every usage duration and corresponding environment weighted value of the air purifier; and calculating the current consumption of the air purifier usage lifetime according to the actual usage duration of the air purifier and a lifespan of the air purifier. <EOS>