In general, indoor oxygen concentration is measured to be 20.5% on the average 30 minutes after ventilation. General outdoor oxygen concentration is measured to be 20.8 ~ 20.9% in Seoul region. Considering the difference of 0.3 ~ 0.4% between indoor and outdoor oxygen concentration, the reason we feel fresher outdoors is clearly because of the difference in oxygen concentration rather than temperature difference.

Clinical experiment proved that living continuously in an environment with oxygen concentration of less than 50% did not exert any impact on human body. This is supported by the fact that oxygen concentration during the Paleozoic era was 35%. It is physically impossible to be exposed to oxygen concentration of 50% or higher unless using an oxygen mask. It is because, no matter how air-tight a residential environment may be, there is the basic ventilation rate to consider. Also, in an environment of high air-tightness, additional oxygen inflow is impossible. For reference, symptoms of oxygen toxicity occur when inhaling 100% of oxygen continuously for 12 hours or longer.

Absolutely not. Firstly, the major effects of oxygen are produced through blood circulation. Therefore, the effects are very rarely felt through the respiratory senses (however, the effects are instantly felt by people suffering from deterioration in the respiratory function). Of course, one may experience stuffiness when returning to Seoul after being surrounded by the clean air of Mt. Seorak. Even so, who would not like the idea of traveling to Mt. Seorak for this reason? So, why not bring the environment of Mt. Seorak to your own living space?

Although the cause has not been clearly verified, active oxygen, is known to be generated excessively when foods taken into human body are not properly burned off due to problems in environment and processing capacities, etc.
When of appropriate level inside human body, active oxygen provides the function to maintain immune system. However, when excessive, it is known to cause skin aging and cancer, etc.
It is absolutely not correct to believe that a large amount of oxygen breathed leads to generation of a large amount of active oxygen. It is known in the academic circle that the possibility of excessive active oxygen occurrence becomes greater by excessive food intake or exercise, rather than the level of oxygen breathed.
From this perspective, creating oxygen environment of Mt. Seorak will significantly lower the possibility of generating excessive amount of active oxygen.
Active oxygen is a part of wastes not burned off in human body. In sufficient oxygen environment or when successful blood circulation takes place through respiration with high oxygen level, active oxygen is naturally discharged from the body together with other waste matters. In human body, a large number of substances containing oxygen atoms exist. Active oxygen is one of them and this is a different substance from ‘O2 – the complete oxygen molecule’ of which two oxygen atoms in natural state are stably connected.

For indoor oxygen concentration level, the variables are oxygen capacity, ventilation and the level of oxygen supply. Ventilation rate of a general bedroom in an apartment is approximately 30%. Maximum oxygen concentration when oxygen of 80% purity is supplied to infinity becomes approximately 28%. In case of use by 2 persons, oxygen concentration increases by approximately 1.5 ~ 2% when oxygen is supplied for 3 hours Oxygen concentration of 20.5% or higher lasts for approximately 4 hours afterwards.

Oxygen concentration level is recommended by considering the term of filter use, product lifespan and appropriate electricity cost for 6 ~ 9 hours of use per day. It is suitable to use the product intermittently during weekdays and for 3 ~ 4 hours during nighttime. Considering various conditions, the ideal oxygen concentration level is higher to the maximum of 1 ~ 2 % than the average indoor oxygen concentration.

During aerobic exercise (treadmill, cycling), human body conducts exercise by consuming a large amount of oxygen rather than using energy of muscles. According to individual cardiopulmonary function, there may be changes in the necessary conditions. However, human body requires a large amount of oxygen in the shortest time period.
The environment ultimately required by customers using a fitness center is the one affluent with dissolved oxygen produced in thickly-wooded forest. The only solution to technically realize this environment is oxygen generator.
Nozzle separately attached to a treadmill injects oxygen to face when a person is exercising. With this, efficiency of aerobic exercise can be maximized. Also, surplus oxygen is sprayed to the atmosphere and creates pleasant environment in business premises.
Do not forget that the best service for customers is your competitiveness.

Scale of business premises is gradually becoming larger and more luxurious. As the characteristic of steam room, successful ventilation is difficult to achieve and a large number of people consume oxygen. However, it is realistically difficult to bring from outside in the amount of oxygen to satisfy such demand.
This sometimes leads to accidents of suffocation. Under the circumstances, the cost of heat control and facility installation for ventilation became one of the greatest concerns of business owners.
By installing a relatively low-priced oxygen facility, the above problem can be solved and the differentiated marketing strategy will largely contribute towards increasing your occupancy in local commercial district. Also, it will sufficiently support your stance on damages experienced by consumers due to oxygen insufficiency and accidents of suffocation possible to occur within your business premises.
When oxygen is supplied to steam room, firstly, your breathing becomes comfortable and, secondly, you will benefit from outstanding skin care effect as oxygen of high purity is absorbed into the open pores.

Recently, motels are built with more cost than hotels and are drawing attention with the differentiated interior designs. However, considering the cost, differentiation only visible to the eyes has its limits. The market trend is that customers are becoming more accustomed to luxurious bathroom facilities, TV or computer, rather than regarding them with greater significance.
As the characteristic of motel business, the business premises are becoming more sealed off in order to block off the outside more effectively. This leads to significant lowering of ventilation rate. Also, the large number of drunken customers consumes high level of energy and, accordingly, requires high level of oxygen. Considering the space or number of people facilitated, supply of appropriate oxygen suggested by OXUS will upgrade and differentiate your business from the others.
If you are planning for new construction of remodeling of your business premises, OXUS will be the best choice you will never regret.

For reading room and study room, age group of the main customers is sensitive to facilities of business premises and other welfare facilities. Therefore, this is the top priority in decision making for these business premises.
Still, the trend is for reading rooms and study rooms to become more luxurious and large-scaled.
As the characteristic of reading room, a large number of people occupy a limited space (2 ~ 4 persons per app. 1 pyeong). Therefore, oxygen consumption is high and the poor ventilation causes bad smell.
Ventilation facilities are installed in some premises, however, conditions for sufficient supply of outside air have not been secured due to noise and other conditions.
As for characteristics of customers, they are highly sensitive to oxygen and are aware of the fact that oxygen exerts impact on brain function and concentration power through data produced by various organizations.
Therefore, pleasant environment with oxygen supply is a must for their selection. Currently, many reading rooms are using oxygen system.
In districts filled with study rooms and reading rooms in Noryangjin and Sillim-dong, installation of oxygen system for new construction or renovation has become an essential choice to become more competitive in attracting customers.

Surprisingly, general office spaces are quite inferior in terms of environmental conditions and have a significant level of demand for oxygen system.
This is the space where people spend the least of 8 hours per day. Exposure to inappropriate environment for a long period of time may cause negative impact on health and lowering of operation efficiency. General buildings are equipped with air conditioning facilities and oxygen insufficiency must be supplemented with outside air according to CO₂level in indoor space. However, due to excessive cooling and heating cost, the rate of operating air conditioning facilities is low. Also, air conditioning facilities must be maintained for and cleaned regularly. However, it is not being carried out properly, either. So, air conditioning facilities often become the breading ground of various germs and other pollutants.
Not to mention underground spaces, ground spaces with lack of windows for ventilation may still cause people to complain about the feeling of stuffiness and headache.
Oxygen system would be the best welfare policy for healthy future for professionals having to frequently use brain and for spaces used by many people, such as conference room, or working spaces where harmful substances are generated.

The value of oxygen is being verified through various routes and, on the basis of this, demands for oxygen are rapidly increasing in these business premises. Oxygen system is installed in these premises in order to supply appropriate level of oxygen mainly in waiting room or treatment room. Also, patients are supplied with oxygen of high purity intensively through headset or aromatherapy to inhale it in a short period of time. As such, oxygen system provides various services besides for medical purpose.
In some oriental medical clinics, oxygen therapy is separately administered for relaxation and comfort after physical therapy. A large number of doctors are praising that this is the best method to maximize treatment effects by protecting the weakened energy of patients. Compared to investment cost, oxygen system also produces a significantly high level of satisfaction in terms of practical benefits.

Many PC rooms are located underground. Even when above the ground, the general interior of PC rooms often involves tightly closing windows to block off ventilation. Generally, PC rooms provide not only the simple service of using PC, but also various other convenience facilities. With special nozzles per each seat, oxygen system maintains pleasant oxygen level in the surrounding areas. Also, a separate oxygen café is operated inside resting space.
Considering interior design, luxurious indoor unit is installed to serve as an important point for visual effect and differentiated service.

Academic institute, skin care center, beauty salon, veterinary clinic, bar, childcare center

Creating pleasant environment is most largely influenced by oxygen concentration and anion inside the space. Generation of anion involves separation of anion from the air by high pressure discharge. However, as the characteristic of anion, anion generated in generator becomes charged with electricity and extinct almost simultaneously as generation. Therefore, it is difficult to anticipate great effect. On the contrary, O₃generation during high pressure discharge may cause ill effect to health.
Oxygen (O₂) is a molecule of stable structure that exists in the atmosphere at all times. Oxygen supplied through oxygen generator, with the exception of those used for respiration and ventilated out through natural ventilation, does not become extinct and contributes towards increasing indoor oxygen concentration level.

Common cold is a process of self-help to send out wastes accumulated in the body that have not been processed due to lack of oxygen. Accordingly, heat is generated and this leads to the condition of common cold. This is the reason why people living in urban regions catch cold significantly more frequently than those in rural areas. Sufficient oxygen supply prevents common cold and enables treatment in the earlier phase.

Insufficiency of oxygen causes problems in blood circulation, which in turn causes various other diseases. Such symptoms are shown first through the skin. As the condition aggravates, it becomes noticeable by other people.

The major difference is to discharge oxygen by strengthening the functions of oxygen level/ noise/ separation method, etc.

The most readily occurring condition is stuffiness. If ventilation is not carried out properly, this symptom aggravates particularly in the elderly whose respiratory function is weaker. A human body produces extremely high adaptability even to the environment of insufficient oxygen if the condition is not extreme. However, exposure to inferior environment for a long period of time fundamentally leads to significant lowering of immunity and various other symptoms. Under this circumstance, the possibility of being exposed to various external conditions must be considered seriously.
Living in a space with sufficient oxygen will enable the process of building up immune system to fight against various external conditions. This will be the best investment made for the health of your family and yourself.

Oxygen promotes blood circulation. Skin becomes healthier if oxygen is successfully delivered all the way to capillaries. The same effect is achieved is skin is sufficiently supplied with oxygen through skin respiration. Sweating in sauna is to discharge the waste of carbon dioxide. Here, oxygen respiration takes place as well. This is supported by the fact that pilots have the best complexion in the air force (pilots breathe in a large amount of oxygen during flight).

Asthma is a type of allergy and its cause and treatment are yet to be clarified. Respiratory function is lost during an asthma attach. It is treated by injecting oxygen of high concentration.

Cancer cells grow well in an environment filled with wastes. Promoting blood circulation by oxygen is essential in a cancer patient to remove internal wastes.

It is being reported that patients with heart diseases are receiving the greatest benefits of oxygen. Conditions of heart diseases include seizure. This is caused by factors of change in blood stream and blood pressure. For example, it was reported that cleaning impurities to block off blood stream with oxygen made improvement on the condition of seizure.

When drinking, a large amount of oxygen is consumed to dissolve alcohol. If the level of oxygen intake is not sufficient, one reaches the state of oxygen insufficiency. The effect of oxygen deficiency surfaces on the skin immediately after drinking. In addition, negative symptoms of oxygen deficiency continue on after a person becomes sober as headache due to lack of oxygen and dizziness caused by insufficient transportation of blood, etc.

We consume a large amount of oxygen when using brain. Particularly, the amount of respiration becomes relatively lower when we focus on a matter. Therefore, we experience the absolute deficiency of oxygen. If this state continues on for a long period of time, one loses the ability of mental focus. Give oxygen to students who are experiencing difficulties in focusing!!!

Most of the elderly over the age of 70 have cardiopulmonary function that is only 40 ~ 50% of general people. Naturally, blood oxygen pressure decreases and all functions of human body deteriorate. Most of the elderly experience difficulties in having sound sleep. This is mainly caused by the sense of stuffiness generated by oxygen deficiency. Many of the elderly experience discomfort if sleeping with bedroom door closed.

In air purifier, electric charges processed with high pressure discharge bind with nitrogen and oxygen molecules in the air to become anion. Anion captures dust in the air and has it fall to the ground. Some saunas are equipped with oxygen rooms to generate anion. This is of the same principle as well to provide a condition that facilitates the ionized oxygen to be absorbed into skin. As anion is produced by high pressure discharge, the level of production is absolutely insufficient. Also, ozone generation during high pressure discharge also causes ill effect to health.

Air purifier only filters the air to capture dust. So, it cannot be a solution to stuffiness caused by oxygen deficiency in an indoor space.

Indoor concentration of oxygen is difficult to increase and costs a lot. As long as the level does not reach 50%, it is absolutely good to increase the concentration level as much as possible. Level of oxygen provided by oxygen air conditioner is low, therefore may not produce a significant effect. But, it may have the effect of solving the problem of stuffiness in an indoor space to a certain degree.