An Experiment with an Air Pump has won several awards, including Outstanding Off Broadway Play at the Outer Critics Circle Awards. The show also received awards for Outstanding Scenic Design at the Outer Critics Circle Awards, with John Lee Beatt being recognized for his work. Additionally, Brian MacDevitt won the award for Outstanding Lighting Design at the Drama Desk Awards. The Lortels recognized the play with multiple awards, including Outstanding Play for Manhattan Class Company, Robert G. Bartner, Stanley Kaufelt, Daryl Roth, and The Long Wharf Theatre.