For people who are suffering from tinnitus, having an artificial sound introduced into the ear can be a good solution to help distract from the constant sound. To determine whether or not this would be a solution for you, put your head near a tap that is turned on fairly hard; if all you hear is the tap then this may be suitable for you. If on the other hand all you hear is the ringing in your ears, then it is unlikely that a masker would be of benefit as the sound that is made by a masker is quite similar to this noise.