What do the different colour inhalers for asthma sufferers mean?

Different brands, and prob different meds. You should really find out about the medicine you are taking! If you dont know what they are, how do you know which one to take and when? You really should get with your dr or pharmacist to give you the information you need and make sure you are taking them properly. This is very important in managing asthma (or any other condition, for that matter).