Looking for Ideas - Small Temporary Room Inside Hangar for Dust Free Area & Place to Store Electronics

We have a small T-hangar (fully enclosed) that comfortably houses a 182 and has room under each wing for plenty of storage, desk, areas, etc. Since the city owns the hangar we aren't allowed to permanently build anything but we would like to come up with ideas for how to build/create a dust-free room where we can keep dust out for storing electronics and flight planning..a mini man-cave basically. We have power inside the hangar. Any ideas out there from anyone?