We used it in an experiment in power generation from it. We had a 950 litre high pressure dewar with a 4kW ambient evaporator attached to it and ran the nitrogen through an expander to generate power.

We vented the nitrogen outside because it's an asphyxiant despite the apparent air conditioning advantages. But we still managed to fill a huge warehouse with an eerie 2 foot deep fog that formed from air passing over the evaporator.

Fun day that :)
( Draconacticus Reject shampoo. Demand real poo!, Tue 20 Sep 2011, 16:14, Reply)