The price of the units isn't so much a concern. Government...

The price of the units isn't so much a concern. Government entities and corporates will pay many small cars if it's effective and they are
"seen to be doing what's reasonably practicable" to limit public liability. But I feel it really doesn't need to be that expensive. There are too many stages involved that I feel can be streamlined to deliver it at a lower cost. It wouldn't be hard for them to make an evaluation from a floor plan and indication of where vents are located as to what is required rather than boring management, engineers and the company pet fish with stuff they simply don't understand and don't need to understand. You want someone to come in, take a look, set it up and let you get on with business. I just don't see why they have to make a project out of it. At the end of the day you're going tot be dealing with a person, and if it makes their job harder they'll just look for an easier path.