The pneumatic air-hiss of the doors opening and closing was created by the sound effects editor, who aimed a can of compressed air into a five-gallon plastic water jug. He would pull the tube of the air nozzle out of the jug while pressing the button, which produced the doors' sound.
After auditioning many actresses for the part of Maggie, director Aaron Lipstadt met Brie Howard (aka Brie Howard-Darling) at a party. At the time she was a drummer in an all-girl band, but he liked her looks and asked her to try out for the role.
This was one of several films profiled in an early Discovery Channel TV documentary called "Special Effects". The segment on "Android (1982)" featured behind the scenes footage of: the construction and process photography of the spacecraft miniatures, fabrication of prosthetic makeup including the puppet of Klaus Kinski's severed head, and the stop-motion animation of the opening title sequence.
The lift (elevator) is almost certainly not a real one but via lighting effects this is not obvious. The lights in the elevator car are apparently off while travelling between floors and are lit when the car comes to a stand at the destination floor. Although this is strange operation of the car lights the viewer accepts this and the elevator seems quite realistic.