Strange one - I've just started teaching first aid and am trying to get hold of a couple of used blue and brown inhalers for demonstration/training purposes (obviously without the actual medicine). You don't appear to be just able to buy the devices and I don't know anyone with asthma. Someone suggested posted somewhere like this! Ideally I'm after 2 blue and 2 brown and will obviously pay postage. Do let me know if you can help :)