Frequently Asked Questions
Q: I’m a first time user, what should I know?
A: Like any new tool, the GO² will take some getting used to. We suggest initial use be on a light run or cardio exercise, using the device intermittently, 3-5 minutes in and then 2-3 minutes out. This will help acclimate your body to the device a bit. First time users often have a bit of excess saliva with the device - with 95% of users, this will subside over time and this acclimation process will help alleviate the issue. We always suggest that users don’t necessarily bite down on the teeth guards but rather let the device “float” a bit in your mouth. Even sliding the bite guards between your teeth and cheeks will allow you to swallow a bit easier. Lastly, stick with it. The science is sound, this thing works. If you continue to use the device and give it a fair chance, you will notice the benefits. Feel free to send any questions to info@go2devices.com.
Q: How is this different from a training mask?
A: Most training masks work on the principle of restricting breathing, training your body to work without as much oxygen so that you perform better when you have oxygen. The GO² is the exact opposite, it increases oxygen levels by using a known physiological principle called Positive End Expiratory Pressure - also known as “PEEP”. The inhale with the GO² device is completely natural, only a slight resistance on the exhale which is the principle of PEEP. Additionally, masks are also only worn during training, the GO² can be used during training and competition.
Q: The device is creating excess saliva for me, what can I do?
A: First time users often have a bit of excess saliva with the device - with 95% of users, this will subside over time and this acclimation process will help alleviate the issue. We always suggest that users don’t necessarily bite down on the teeth guards but rather let the device “float” a bit in your mouth. Even sliding the bite guards between your teeth and cheeks will allow you to swallow a bit easier. Lastly, stick with it. The science is sound, this thing works. If you continue to use the device and give it a fair chance, you will notice the benefits. Feel free to send any questions to info@go2devices.com.
Q: Do I use the device for training only or also for competition?
A: We suggest using the GO² during training and competition as the best results are achieved when the device is in use. That being said, basic physiological understanding will tell you that if you use the device during training, you are able to train harder and longer, increasing your overall endurance and leading to benefits when the device is not in use.
Q: Does this restrict your breathing?
A: No, the GO² allows for a completely natural inhale. On the exhale, it applies a slight resistance. This slight pressure on the exhale is the principle of Positive End Expiratory Pressure/PEEP. We’ve designed the device to deliver a specific amount of PEEP so that your lungs get more oxygen and work more efficiently during any aerobic state.
Q: How long does the device last?
A: The device will typically last about 1 year. The majority of the device is an injected molded silicone and the polymers will eventually lose their integrity. The rubber bands on the sides of the valve will likely last less than a year, especially depending on the climate. In a mild climate, expect the bands to last around 6-9 months. In high heat, dry or cold climates, you may have to replace the bands every 3 months. Replacement bands are available on the website or you can email info@go2devices.com.
Q: How exactly does GO2 work to increase oxygen?
A: The GO² applies Positive End Expiratory Pressure or PEEP, which opens small air sacs in the lungs that are normally collapsed. By opening these sacs, more of your lungs are being used to take in oxygen and the overall respiratory dynamics are improved. The GO² allows for a completely natural inhale. On the exhale, it applies a slight resistance. This slight pressure on the exhale is the principle of PEEP.
Q: How do I clean the device?
A: Some light soap and warm water should do the trick!
Q: Is there a dental warranty on the device?
A: Yes
Q: Is GO² legal to use in competition?
A: Yes! The Go2 is well within WADA guidelines. Has been used in Triathlons, Marathons, Ironman and even the Superbowl.
Q: Shouldn’t I just breathe through my nose?
A: Numerous studies have shown that as an athlete approaches maximal effort, there is a switch to oral breathing. These are published peer reviewed reports, with Statistical significance in major journals. See these links.
https://www.ncbi.nlm.nih.gov/pubmed/7444224/
https://www.ncbi.nlm.nih.gov/pubmed/8599744/
There are also studies that show at maximal effort, performance is decreased by nasal breathing. https://www.ncbi.nlm.nih.gov/pubmed/24077371/
Lastly, basic understanding of physiology would tell you that at maximum effort, nasal breathing would have a lower minute ventilation and compound the exercise induced metabolic acidosis with a respiratory acidosis associated with CO2 retention.
Q: Will this device help with my asthma or COPD?
A: This device is not meant to treat, manage, or cure any disease. With that being said, we have had incredible feedback in patients with asthma and COPD. This is what we would expect as there are numerous medical studies which show that PEEP (positive end expiratory pressure), the underlying mechanism of this device, is helpful in patients with asthma/COPD.
Q: Have your research results been published?
A: Yes. See here:
Crouse, S.F., Boutros, S., Benton, W.B., Moreno, M., McCulloch, P., & Lambert, B.S. (2019). Wearable positive end-expiratory pressure valve increases aerobic capacity and performance. (Abstract) Medicine and Science in Sports and Exercise, 49(5)(Suppl), S782