Why Is There Less Oxygen At Altitude?
Because atmospheric pressure decreases as you gain elevation, the air is less concentrated. Because the air is thinner, each breath brings in fewer air molecules. As a result, there is about 30% less oxygen in most Western ski resorts than at sea level.
What Is Altitude Simulation?
Altitude simulation involves adjusting oxygen levels. ACT’s system replicates oxygen concentrations similar to those found at sea level, creating an indoor environment that feels comparable to lower elevations.
Do You Still Acclimatize To Altitude If You Sleep In An Oxygenated Room?
Yes. Spending 6–9 hours sleeping in an ACT room still leaves 15–18 hours each day at altitude, providing ample exposure for the body to adjust naturally. Using this approach allows you to maintain that daily altitude exposure while creating a more comfortable nighttime environment. Even after adjusting to altitude, sleep quality can remain inconsistent, which is why oxygenating the bedroom can be a practical solution.
Can Adding Oxygen To My House Increase Fire Risk?
Not with an ACT system. Ordinary oxygenation can increase fire risk, but ACT’s system meets NFPA standards for safe oxygen levels, so there is no increased fire risk. ACT’s system has been tested by NFPA certified engineers and meets NFPA’s standard. ACT is the only company that meets this standard for fire-safe oxygen use.
“Providing oxygen during sleep is a side-effect-free way to treat altitude related insomnia.”
Are There Any Side Effects From Sleeping In An Oxygenated Room?
No. ACT’s oxygenation system is designed to increase indoor oxygen levels to conditions similar to those found at sea level. It is intended to enhance comfort at altitude and support a more restful nighttime environment.
Altitude Simulation Chart
Altitude (Feet) | Altitude (Meters) | Effective OxygenPercentage | Equivalent Location | Effective Altitude with ACT System |
| 0 | 0 | 20.9% | Seattle, Washington - Sea Level | Sea Level |
| 1,000 | 305 | 20.1% | San Antonio, Texas (1,000 ft - 305m) | Sea Level |
| 2,000 | 610 | 19.4% | Tucson, Arizona (2,389 ft - 728m) | Sea Level |
| 3,000 | 914 | 18.6% | Billings, Montana (3,123ft - 952m) | Sea Level |
| 4,000 | 1,219 | 17.9% | Salt Lack City, Utah (4,226ft - 1,288m) | Sea Level |
| 5,000 | 1,524 | 17.3% | Denver, CO (5,280ft - 1,609m) | Sea Level |
| 6,000 | 1,829 | 16.6% | Jackson, Wyoming (6,237ft - 1,901m) | Sea Level |
| 7,000 | 2,134 | 16.0% | Flagstaff, Arizona (6,910ft - 2,106m) | Sea Level |
| 8,000 | 2,438 | 15.4% | Vail, Colorado (8,380ft - 2,554m) | 1,000 |
| 9,000 | 2,743 | 14.8% | Breckenridge, Colorado (9,000ft - 2,743m) | 2,000 |
| 10,000 | 3,048 | 14.3% | Leadville, Colorado (10,200ft - 3,109m) | 3,000 |
| 11,000 | 3,353 | 13.7% | La Paz, Bolivia (11,975ft - 3,650m) | 4,000 |
| 12,000 | 3,658 | 13.2% | Peak of Crested Butte, CO (12,162ft - 2,562m) | 5,000 |
| 13,000 | 3,962 | 12.7% | Huanuni, Bolivia (13,020ft - 3,970m) | 6,000 |
| 14,000 | 4,267 | 12.3% | Pikes Peak Mountain Summit (14,115ft - 4,302m) | 7,000 |
| 15,000 | 4,572 | 11.8% | Monte Rosa, Switzerland (15,203ft - 4,623m) | 8,000 |
| 16,000 | 4,877 | 11.4% | Wenquan, Qinghai, China (15,980ft - 4,870m) | 9,000 |
| 17,000 | 5,182 | 11.0% | Mount Kenya, Kenya (17,057ft - 5,199m) | 10,000 |
| 18,000 | 5,486 | 10.5% | Lascar Volcano, Andes, Chile (18,346ft - 5,592m) | 11,000 |
| 19,000 | 5,791 | 10.1% | Mount Logan, Yukon, Canada (19,551ft - 5,959m) | No Human Habitations |
| 20,000 | 6,096 | 9.7% | Mt. McKinley, Denali, Alaska (20,236ft - 6,168m) | No Human Habitations |
| 21,000 | 6,401 | 9.4% | Coropuna, Andes, Peru (21,079ft - 6,425m) | No Human Habitations |
| 22,000 | 6,706 | 9.0% | Llullaillaco, Andes, Argentina/Chile (22,142ft - 6,739m) | No Human Habitations |
| 23,000 | 7,010 | 8.7% | Link Sar, Karakoram, Pakistan (23,100ft - 7,047m) | No Human Habitations |
| 24,000 | 7,315 | 8.4% | Saraghrar, Hindu Kush, Afghanistan (24,111ft - 7,349m) | No Human Habitations |
| 25,000 | 7,620 | 8.1% | Kongur Tagh, Kongur Shan China (25,095ft - 7,661m) | No Human Habitations |
| 26,000 | 7,925 | 7.8% | Annapurna, Himalayas, Nepal (26,5450ft - 8,091m) | No Human Habitations |
| 27,000 | 8,230 | 7.5% | Makalu, Mahalangur, Himalaya (27,838ft - 8,485m) | No Human Habitations |
| 28,000 | 8,534 | 7.2% | K2, Baltoro, Karakoram, Pakistan (28,251ft - 8,6169m) | No Human Habitations |
| 29,000 | 8,839 | 6.9% | Mount Everest, Himalaya (29,029ft - 8,848m) | No Human Habitations |
| 30,000 | 9,144 | 6.3% | Outside of Commercial Airliner in Flight | No Human Habitations |