Works Great BUT DOESN'T last!

I actually LOVE this item! However, I have purchased 3 of them and 2 have broken (the top of diffuser becomes separated from the bottom portion). After the first 1, I thought well maybe I moved the car vent and it was too much pressure and that is what was the problem. Well, unfortunately, it just happened a 2nd time and I have been extraordinarily careful with the item (sometimes so careful it was a pain in my behind to refill it). It works great but it has become disposable and it is not cheap enough to replace after this 3rd one breaks!

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