Device for Measuring Particles in Air

1. Measuring instruments, apparatus and devices

1 . 1 is a rear elevation view of a device for measuring particles in air showing my new design;

1 . 2 is front elevation view thereof;

1 . 3 is a front perspective view thereof;

1 . 4 is left side elevation view thereof;

1 . 5 is right side elevation view thereof; and

1 . 6 is a top plan view thereof.

A bottom view forms no part of the claimed design.

The broken lines are shown for the purpose of illustrating portions of the device for measuring particles in air and form no part of the claimed design.