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Review on Enhance Performance with VIKINGSTRENGTH 3. Generation VO2 Workout Mask for Running Biking MMA Endurance by Luke Cotton

Revainrating 5 out of 5

Not much exercise and fitness

Not for sale. I've tried installing filters in a variety of ways, but as shown in the photo, they completely block airflow. I don't see leverage doing much either. The biggest problem is that it doesn't fit everyone. I must have a narrow head because the area where the velcro connects is too big so I have to lift it and think the mask will come off during my workout. Too bad how much I wish this could be my sports mask.

Pros
  • Permanent test results
Cons
  • Weight