5L Freestyle Comfort Oxygen Concentrator for Home

This product is not suitable for use in plateaus. The oxygen concentration will not be reduced from sea level to 1828 meters. The efficiency is less than 90% from 1828 meters to 4000 meters.

When the organs of the body (such as the brain, heart, lungs, etc.) are deprived of oxygen, their functions will decline, and symptoms such as dizziness, fatigue, inattention, and palpitations will occur. Long-term hypoxia may also cause chronic diseases (such as cardiovascular and cerebrovascular diseases, lung diseases, etc.)

Oxygen concentrators are auxiliary oxygen supply tools and cannot replace drug treatment.

• Aging of the respiratory system
  The number of alveoli in the elderly decreases, their elasticity decreases, their pulmonary ventilation and gas exchange functions weaken, and the efficiency of oxygen inhaled air entering the blood decreases.
  The respiratory mucosa atrophies, the cilia movement weakens, the sputum discharge ability decreases, and sputum accumulation is prone to occur, further affecting oxygen intake.
• Decrease in circulatory system function
  The weakened heart contractility and reduced vascular elasticity lead to a decrease in the blood’s ability to transport oxygen. Even if enough oxygen is inhaled, the tissues may not be adequately supplied with oxygen due to blood circulation problems.
• Slower cell metabolism
  The body’s cells use less oxygen. Even if the blood oxygen partial pressure is normal, “hidden hypoxia” may still occur at the tissue level, manifested as fatigue and decreased activity endurance.

• Increased load on the respiratory system
  In the middle and late stages of pregnancy, the enlarged uterus pushes the diaphragm upward, resulting in a decrease in chest volume and a decrease in lung ventilation of about 15% to 20%. Pregnant women are prone to “physiological shortness of breath”.
  Pregnancy hormones (such as progesterone) stimulate the respiratory center and increase the respiratory rate (about 18 to 20 times per minute), but the single respiratory volume may decrease, resulting in fluctuations in oxygen intake efficiency.
• Surge in blood volume in the circulatory system
  The blood volume during pregnancy increases by about 40% to 50% compared to before pregnancy, and the heart load increases. If there is heart failure, tissue hypoxia may occur due to decreased blood circulation efficiency.
• The oxygen demand of the fetus continues to grow
  The development of the fetus depends on the mother’s oxygen supply through the placenta. In the late pregnancy, the daily oxygen demand of the fetus can reach 250 to 300 ml. If the mother’s oxygen supply is insufficient, it is easy to cause fetal intrauterine hypoxia.

• Children’s brains account for about 2% to 3% of their body weight, but consume 20% to 25% of the body’s oxygen, making them one of the most sensitive organs to hypoxia.
• Hypoxia affects the transmission of neurotransmitters (such as dopamine and norepinephrine) in the prefrontal cortex (responsible for attention, decision-making, and executive functions) and the hippocampus (related to memory and learning), leading to energy metabolism disorders in nerve cells, manifested as distraction, slow response, and decreased learning efficiency.
• Long-term mild hypoxia (such as blood oxygen saturation <95%) may not manifest as obvious dyspnea, but will subtly affect brain development. Studies have shown that children with hypoxia have higher error rates in visual attention tests (such as the TOVA test) and shorter attention spans.

• Changes in breathing patterns
  Under long-term high pressure, the human body is prone to “hyperventilation” or “shallow and fast breathing”, which leads to excessive carbon dioxide discharge and increased blood pH (alkalosis), which in turn inhibits the respiratory center and indirectly affects the efficiency of oxygen intake.
• Effect of stress hormones on oxygen consumption
  Stress promotes the secretion of hormones such as adrenaline and cortisol, increases the body’s metabolic rate, and increases oxygen consumption. If the breathing depth is insufficient or the cardiopulmonary function is weak at this time, “relative hypoxia” (imbalance between oxygen supply and demand) may occur.
• Microcirculation disorders
  Long-term stress can cause vasoconstriction and slow blood flow (such as poor venous return in the lower limbs when sitting for a long time at work), affecting the diffusion of oxygen in tissue cells, especially the brain, muscles and other oxygen consumers.