How to fix the Grado 'grattle.'

For those who don't know, the Grado 'grattle' occurs when a 'hair' gets caught in the right or left headphone chamber resulting in something that sounds like in one of the drivers, sometime made most prominent by bass activity.
 
Recently a 'grattle' appeared in the right driver/chamber of my Grado RS-1 headphones. I tried 'blowing' on it - not wanting to blow to hard and damage anything. It went away for 30 seconds or so and came back. Not wanting to pay $100 to have maintenance done, I emailed Grado and asked them how to fix this.
 
They told me:
 
Quote:

"[size=small]Blow air in the chamber using a can of compressed air. P[/size][size=small]oint it in the inner cup - the outer will have no effect."[/size]

Click to expand...

 
This worked like a charm for me. For future reference, I thought I'd share this (though many of you probably already knew this solution.) Very thankful I didn't need to send in my RS-1's / nothing was wrong with them.

Of course, if you're a damn longhaired hippie like myself, any grattle causing hairs can be easily seen and are too long to completely disappear past the driver cloth and can easily be plucked out.

Just tried this and it did not get rid of my grattle

what do you mean by the inner cup? Like, take the foam off and point the blower toward the speaker that way? Or blow it from the outside grill in??