Device inspection apparatus for determining cleaning necessity and related methods

An apparatus to inspect a device, the apparatus comprising:

• an enclosure configured to hold the device;
• an intake to blow an air flow into the enclosure and through the device to disperse particulates within the device into the air flow;
• and
• a particulate sensor positioned to observe the air flow and to derive a level of the particulates in the air flow after passing through the device,
• wherein the device comprises an intake vent and an exit vent, wherein the enclosure is aligned to direct the air flow through the intake vent of the device, wherein the air flow exits the device through the exit vent, and wherein the particulate sensor observes the air flow after the air flow exits the device through the exit vent.