The AltoMixer Triple-Stack is what's actually used to adjust your altitude. Each AltoMixer is equal to about 5000 ft. of altitude. Breathing through a single mixer causes a modest drop in blood oxygen %. Breathing through 2 mixers (equal to about 10,000 feet) causes a drop in most people down to 90-92% blood oxygen after about 2 minutes. Three mixers it drops it down to 84-90% and 4-6 mixers drops it down to 65-84% blood oxygen, depending on the individual. Each session is done at intervals of 6 minutes/ON and 4 minutes/OFF repeated 6 times. Going to altitude is as simple as that! It's typically done while reclining on a sofa. During It's vital that you constantly monitor your % oxygen levels with the pulse oximeter. If you want to raise or lower your oxygen, you can remove or remove AltoMixers. There is a 20-30 second lag in reading the change on your oximeter. The AltoMixer Triple-Stack is what's actually used to adjust your altitude. Each AltoMixer is equal to about 5000 ft. of altitude. Breathing through a single mixer causes a modest drop in blood oxygen %. Breathing through 2 mixers (equal to about 10,000 feet) causes a drop in most people down to 90-92% blood oxygen after about 2 minutes. Three mixers it drops it down to 84-90% and 4-6 mixers drops it down to 65-84% blood oxygen, depending on the individual. Each session is done at intervals of 6 minutes/ON and 4 minutes/OFF repeated 6 times. Going to altitude is as simple as that! It's typically done while reclining on a sofa. During It's vital that you constantly monitor your % oxygen levels with the pulse oximeter. If you want to raise or lower your oxygen, you can remove or remove AltoMixers. There is a 20-30 second lag in reading the change on your oximeter. C101Regular price: $45.00Sale price: $36.00 The K2 Xtreme AltoMixer is an accessory to the AltoMixer Triple Stack. Advanced AltoLab users occasionally reach a limit with the conventional AltoMixer stack, sometimes needing as many as 10 AltoMixer cups to lower their blood oxygen into the 70-80% range for proper IHT exposure. For advanced AltoLab users who have difficulty in dropping their blood O2 levels, we've developed The K2 Xtreme AltoMixer. This unit is attached to the bottom of a conventional triple stack and allows you to re-breathe your exhaled air several times so that you can lower your blood O2 levels to the proper range. Unlike the conventional triple stack, the K2 creates a closed loop so you will need to exhale and inhale air out of the side of your mouth after every 3rd breath. With practice, you can achieve the desired levels of controlled hypoxia needed to get proper IHT exposure. As with the triple stack, you will use a 6 min ON/4 min OFF cycle that is repeated during your IHT session. K2 Xtreme AltoMixer K201Regular price: $83.00Sale price: $69.00