When I received the mask, the first thing I did was read the instructions and clean the mask. I then tried different mask levels to see which level I could start with. So I pop another insert into its slot and set the level to 1. I set the timer to 2 minutes and just march in place at a low intensity. Step. I honestly have to say it was a tough time putting on the mask while marching, the mental notion that the mind thinks I can't breathe. This prompted me to take time to progress to set a goal of at least reaching that level. From that point I started with a single paste on level 1 for 20 minutes with no activity just to get used to the idea of using a mask. Then I move on to an evening walk with a mask on level 1 for 20 minutes. Every day I would increase the level of the same walk in the evening for 20 minutes until I reach level 4 with one valve. It took 4 days to reach single insertion level 4. I switched to walking 2 times daily single insertion level 4. 1 in the morning and 1 in the evening for 20 minutes during the week. I have found that I can stay at level 4 at low walking intensity. I've now started more intense cardio and cross training at level 4 with one insert for 20 minutes. I've found that I'm having a harder time keeping level 4, I have to adjust to lower levels over time. It tells me to continue my efforts there with time when I get there. That's where I'm at right now with the mask and I'll be working and progressing to hold level 4 on one deposit in 20 minutes. A little about myself I am a 54 year old active male. Running is my passion which I use to run long distances and marathons, both full and half marathons. I was also into hiking and cycling. Now I do sprinting, strength training, cardio, and boxing. The mask also improves my training. I can see where it would improve 1 hour high intensity cardio sessions. Although running long distances was in control, I found that transitioning to 1 hour cardio sessions can be difficult because constant intensity movements can leave you feeling sluggish. Unlike running, where you line up or go for the moment. My advice to anyone just starting out like me, regardless of your fitness level, test yourself and see what level you need to start at (your starting point). Don't raise your expectations lest disappointment lead to surrender. Start slowly moving up. Give yourself time to adjust so you don't lose ground on your goals. I would also like to point out that you must not only enjoy using the mask, but whatever you choose to do with it. I'm learning more about myself as I transition to a different type of fitness for myself. careEnjoy everything you set out to do. Enjoy everything you do Brian
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