Your Respiratory Muscles Anywhere with Our Portable Lightweight Lung Exerciser - Compact Silicone Breathing Exercise Device for Adults (Black)

The product is functional however, it tends to accumulate a lot of spit into the guard and your mouth which is gross.

Image above is the instructions that can be seen by turning the package around. Grammatical mistakes, absurd instructions. Also why does it look like the same picture in three of the supposed 5 star reviews.What's your goal with this product. Is it to increase the power of your lungs? Then look elsewhere. This is a saliva production machine with easy air pass through even at the tightest setting. Add in that it's a mouth breathing product and you'll be taking the thing out in less than 5 minutes to spit the huge wad of saliva that is now in your mouth and the device. It says if you smoke to not use this but as an avid smoker of ten plus years, I can use this thing at the highest setting, and still be breathing almost like it's not there.Also what do you mean when it says on the instructions "do the following three steps without taking the cigarette holder out of your mouth."Save you money and buy a full face mask if you want any type of air restriction to "train" your lungs.

barely had any resistance and the moisture build up made the unit start drooling.

I like it. It makes you work harder and increases the heat rate faster. I go out for 30 minutes walks all the time and using this, makes my walking a lot more challenging. Highly recommended.

The true magic lies in the adjustable resistance level, which can provide a personalized experience and meet the needs of users of all fitness levels. It is truly surprising that breathing, as a simple matter, can have such a profound impact on a person's life