The body of a father-of-two who was missing for a month was discovered inside a ventilation system at a community college in Michigan.

Jason Thompson, 36, was identified by his remains on Monday after staff at Macomb Community College reported a foul odor permeating from their performing arts center.

Cops did not immediately know how the body wound up in the air vent or how long it was there.

‘There is no reason to suspect foul play,’ Macomb College Police Chief William Leavens told the Detroit Free Press.

‘At this point, it is important to remember that this an ongoing investigation, with the goal to understand the circumstances.’

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