Airbag Gas Bottle Replacing - 145

I've just noticed after hoovering out my 145 that a manufacturers sticker on the drivers door pillar indicates that the Airbag Gas Bottle was due to be replaced in October 2007.

Has anoyne else got the same sticker and more over - is it that important that I do get it replaced as the sticker suggests?

I've heard of airbags working in cars after 15 or so years and mine is a '97, should I be that concerned?

I wouldn't worry about it myself.

There isn't a gas bottle as such anyway. The airbag works with explosives that produces carbon dioxide gas, and this fills the airbag.

meh, youll know wen you crash, and if it dont go off, one less thing to replace :P

lol