Been using this for some time now. I’ve always had bad breathing problems, and I love this product. Realistically, no minty menthol vapors are going to remove congestion, but this does tend to open the passages a bit and make you feel like you can breathe more deeply. It also gives you a nice little alertness jolt, I find myself using it all the time as a non-addictive stimulant. The package says that the vapors last 3 months after opening but I’ve found it lasts considerably longer if you keep it shut tight. Excellent and highly recommended.