Calculation method for service life of filter screen of air purifier, storage medium and air purifier

The invention discloses a method for calculating the service life of a filter screen of an air purifier, a storage medium and the air purifier, and belongs to the technical field of air purification.The method specifically comprises the following steps that the air purifier starts timing from the starting moment, meanwhile, unit calculation time Tt is set, the current concentration CT of particulate matter in air is recorded at the ending node of each unit calculation time, and the current concentration CT of particulate matter in air is calculated; the total service life of the filter screen is set to be T, the filter screen service life consumed in unit calculation time is set to be T1, the remaining service life of the filter screen is set to be T2, and the weighted weight of filter screen service life calculation is set to be Wi. When the method is used, the consumed service life of the filter screen in the unit calculation time is calculated through the formula T1 = Wi * Tt, the remaining service life of