We have them already installed in various public places (LA). The training to use them is only 1/2 day and people do not have to be first aiders to use it. Although not legally bound to have them they do save lives. PP me and i will put you in touch with our supplier/training organisation where you may get some for nothing or a good price. The ones we have actually talk you though using it and will not fire if the pads are in the wrong place.

The practicalities include locating it where it can be accessed quickly, and by any employee. The first aider dealing with the casualty shouldn't be going off to get it - someone else should be fetching it to them. Getting it fast is critical to the chances of success. It's also important that everyone understands that it is used alongside normal CPR not instead of it. Although they are extremely easy to use, it would be remiss not to give training or at least familiarisation if you can. It is helpful to know in advance how to open the box, what you will see when you do, how it fits in with CPR and how to operate it - rather than trying to work all this out in a very stressful situation when time is critical. Some suppliers sell training models - these are useful for familiarisation because you don't want to run down the batteries of the real one. The batteries and pads will need replacement from time to time and after any use of the unit.