In this video guide I will show you a way to use the medical inhaler 300 times. This is the way I would recommend for players wanting to get this achievement without all the extra saving and reloading
. Try to make a habit of going to the vendors every time you come back to a town or location that has a vendor throughout the game
. If you keep on buying them when playing the game, and if you keep looting everywhere. You will definitely have enough by the end of the game. Once you have saved up 300, make a manual save. Then keep using them until the achievement pops. It shouldn't take more than 15 minutes, even if you are starting from scratch.