Offering the highest output in its class, the N2Cat Nitrogen Generator is the most advanced nitrogen purifying system available. Nitrogen purity delivered by the N2Cat is >99.95%, higher than industry competitors. Weighing just 74lbs, this generator is designed to hang on the wall and take up as little space as possible. The generator runs at a very reasonable 64db volume level, a normal conversation can be held within feet of it operating! With restaurants and bars in mind, the N2Cat is the best choice.