The O ring in cartomizers.

[mn shutterbug]

What is the purpose? I've removed mine and was just wondering what purpose they serve.

 

[Haytoni]

What is the purpose? I've removed mine and was just wondering what purpose they serve.

Not sure but don't they stop the juice from being sucked back into your mouth.

 

[WhatAClumsyGirl]

I think they are suppost to "catch" some of the extra juice in the cartomizers to keep them from splashing back into your mouth. If a cartomizer is too full, this wont work really well...but thats what i think they are there to do.

I usually fill my cartomizers..with the easy fill method using the cart cover....then i blow out the extra juice into a paper towel before using it. Works for me.