![Sparthos High Altitude Mask - Simulate High Altitudes - for Gym, Cardio, Fitness, Running, Endurance and HIIT Training [16 Breathing Levels]](https://m.media-amazon.com/images/I/61f0v++YKdL._AC_SY879_.jpg)
Sparthos High Altitude Mask Reviews Summary
Ratings Breakdown
Rated 4.4 by 7,585 people
Pros from Reviews
- Improves workout intensity
- Adjustable resistance levels
- Comfortable and washable
- Enhances performance
Cons from Reviews
- May slip during intense movement
- May cause headaches over time
- Fit may not be universal
Notable Features
Simulates Altitudes
16 Breathing Levels
Anatomically Designed
Intensity Amplification
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