"The TrainingMask could be a very valuable adjunct for endurance athletes who are looking to improve their performance."

"Athletes Claim these masks boost their workouts"

"I started to notice three days of working out with it, like my wind got that much better. And I was like whoa – This thing works."

"At the end of the day, I can definitely see how wearing a training mask can help improve your breathing and overall fitness."

"TrainingMask VENT could save my lungs from the global-warming induced, record setting California wildfire season – and in performance filtration mode it could train my respiratory muscles at the same time. The perfect gadget for the climate hellscape."