So thankful for this product. University of TN hospital could not finish their testing on my dog due to the fact he would stop breathing when turned on his back or side. Things looked dire until my family vet suggested trying AeroDawg. Talk about a new lease on life. No more coughing and feeling good for the first time in a long time. The video on this site was very helpful. Am so very thankful to have my dog enjoying life again.