The ornamental design for an airpurifier with light, as shown and described.
1. Air purifier with light
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Left
1.5 : Right
1.6 : Top
1.7 : Bottom
1.8 : Partial cross-section view shown in a state of use.
The broken lines shown within the opening of the article in FIGS. 1.1 and 1.8 represent unclaimed portions of the air purifier with Light and form no part of the claimed design. The remaining broken lines illustrate environmental condition only and form no part of the claimed design.