Asthma is usually a cause of bullying. Inhalers symbolize weakness. This inhaler becomes a friend, the child builds a bond of empathy. No more shame. The use of this inhaler motivates children to learn and treat their condition.
This inhaler was originally designed focused on small children with asthma - the grip is easier. However, after feedback from parents I learned most children use spacers. There are some spacers that have a rubber end that adapts with any inhaler's mouthpiece. If that is the case, this inhaler still works with that. I also learned there are several sizes of canisters, so it might not fit all of them.
Use best quality possible, at least for the main part (the base).
Use a needle or pin to perforate the spray hole. It will be marked in the print but because of the size, most printers won't make a clean hole through.
The tolerances for fitting the top on the base might not be perfect due to printing quality and method. You can sand or use a knife to remove excess material and make them fit together.
I designed this for GrabCAD.com's 3D Printing Event in 2012. It won the first place out of hundreds of entries from all over the world.
This model has been online for free download since 2012. There have been attempts to steal it and commercialize it, but all have failed so far. Please support the original design and author (me :) ). It was never my intention to get money out of people with this, but to offer an alternative to traditional inhalers.
Thanks to everyone who has supported me. This is for everyone.