CHOICEMMED Lung Expansion - Breathing Exercise Device - Clear Lungs - Lung Muscle Trainer Replacement for Altitude Mask - Diving and Instrument Breathe Trainer

You are probably here because you have heard that lung work outs improve athletic performance as well as lowering blood pressure. There are a number of products on the market that fill this need, the cheap ones appear to be a restrictive breathing device, and the more expensive ones are electronic devices. Some of those electronic devices can be hundreds of dollars. I took a chance on this one because I do like devices that can offer feedback, also this product is priced cheaper than some of the non-electronic devices. I figured if it wasn't worth the money, I would not be out much.The directions on how to put together are incomplete, I eventually figured it out. Once together, the directions are also vague. There are two obvious mode it can start in, Endurance or Strength. If you first breath is inhale or exhale, the machine will stay in that mode. It gives you 15 seconds rest before it will take a new measurement. It has a large range of effort between levels 1 - 5. I cannot do level 5, and I am in great shape. I do get a good workout but I wish it had some pre-programmed exercises or games to incentivize the workout. It is good enough for me to keep, and recommend if someone wants a low cost lung exercise.

Only a quick start folder no manual which they say to look in for cleaning help!

I really like this product. It makes strengthening your lungs more fun. With the visuals and the memory it is handy.