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December 08, 2018 1 min read

I’ve been using the O2 Trainer for a few months now and have found it extremely helpful with cardio vascular endurance and lung capacity.  Incorporating the O2 Trainer into my bicycling and running routine has had great results and allows me to maximize my cardio conditioning so I can get the most out of every workout. I would definitely recommend the O2 Trainer if you’re looking to improve and get that extra boost when it comes to cardio and conditioning!