(Apologies if its been posted before - couldn't see it listed)
Dont know if its in-store too
POWERbreathe is a hand-held drug-free inspiratory muscle trainer designed to reduce breathlessness and improves fitness and maximises sports performance.
Available in a range of POWERbreathe models that can be progressively increased in resistance as your breathing improves. Experience the benefits of POWERbreathe after only 4 weeks by using the tried-and-tested programme of just 30 breaths twice a day.
Recommended for anyone already participating in regular exercise and looking to improve their level of fitness, this Fitness model strengthens the breathing muscles, reducing the effort of any activity and increasing whole body endurance.