It is so small and compact, light, easy to carry and easy to use. I feel that I am getting more medication with this nebulizer then with the big one I have for at home. I am thrilled with the price, how it works. It is everything that the product description says.

Paris works great and was delivered quickly.

Outside of the price and the amount of time you get from the optional battery this unit is excellent. Quiet, small and works as stated.

My husband has COPD. We have had this product before. He has also had the larger portable nebulizers. For the price and functionality we would recommend this product, Pari Trek S to anyone who needs a nebulizer. It is a great price and lasts just as long as the expensive brands. It is easier to carry and can be used in your car as well.

Worked great - the only negative is the little flap on top which regulates outgoing breaths would occasionally get stuck in the open position. However, I just press down and it works fine. It is overall a very good product.

Finally arrived, works great, good price.

works very well, small, light, easy to transport

I have used one at home for a year or two. Bought another for traveling.

I bet it is nice but hard to tell as processing and shipping take so long

My mother and I are thrilled with our new Trek S. Because we travel, we selected it primarily for its remarkably small size (especially for a compressor nebulizer; Mother's prescriptions are incompatible with ultrasonic nebulizers). But even for home use, it's a huge improvement over the traditional big nebulizer it replaced. Much, much quieter. Much simpler for Mother to use. Plus, she finishes her treatments in about half the time! What's not to love? No problems in the first week. It appears to be solidly built, so I am hoping for good reliability and long product life. An excellent value for us. Received promptly from Vitality.

Portable, light, and powerkul. Well made.

I've had my Trek S with the battery pack for about a week now. I love not being tethered to a electric plug. The Trek S is easy to use, lightweight and quiet. I'm about to take it on a trip and am excited that it won't take up much space in my luggage. The nebulizer delivers a great stream easily more powerful than the large compressor that I was using before.