SMART CITY

A company that thinks about humans and nature and creates values.

What is Carbon dioxide?

Colorless, tasteless gases have little toxicity, but if they are present in large quantities, they increase a person’s breathing rate for inhalation of many harmful gases, causing symptoms of breathing problems and headaches, ringing noises in your ears, or increased blood pressure.


Carbon dioxide is used as a major indicator for indoor pollution as it usually occurs indoors from a person’s breathing process or when heating or cooking, and is impacted by the indoor volume, number of people, heating status, and ventilation equipment.


Carbon dioxide concentration is indicated as ppm, which refers to parts per million and shows the toxic gas ratio to the amount of fresh air. The regular value of indoor carbon dioxide is 400 ppm, and if the value is 3000ppm or more, it will cause health problems.

What is Carbon dioxide?

Colorless, tasteless gases have little toxicity, but if they are present in large quantities, they increase a person’s breathing rate for inhalation of many harmful gases, causing symptoms of breathing problems and headaches, ringing noises in your ears, or increased blood pressure.

Carbon dioxide is used as a major indicator for indoor pollution as it usually occurs indoors from a person’s breathing process or when heating or cooking, and is impacted by the indoor volume, number of people, heating status, and ventilation equipment.

Carbon dioxide concentration is indicated as ppm, which refers to parts per million and shows the toxic gas ratio to the amount of fresh air. The regular value of indoor carbon dioxide is 400 ppm, and if the value is 3000ppm or more, it will cause health problems.

Fine Dust Increases the Risk of

Children’s ‘Intellectual Disability’.

[ 2018.11.26 SBS News ]

Indoor Air Filled with Carbon Dioxide 

Threatens Children’s Health.

[ 2018.03.30 Joongang Ilbo ]

Carbon Dioxide will Reduce

Human Cognitive Ability by 50%

[ 2020.04.25 Dong-A Daily News ]

Indoor carbon dioxide management that isn’t identifiable by smell or the naked eyes has a direct impact on our health

We often think we don’t need to ventilate if we have an air purifier, but an air purifier can’t bring fresh air indoors and alleviate substances, such as the gaseous pollutant, carbon dioxide.

The only method to reduce the concentration of these pollutants is ‘ventilation’.

Environmental experts recommend that we ventilate at least 3 times for 30 min every day between 9 AM – 9 PM when the air circulation is active, instead of early mornings and late nights.

Indoor Carbon dioxide management that isn’t identifiable

by smell or the naked eyes has a direct impact on our health

We often think we don’t need to ventilate if we have an air purifier, 

but an air purifier can’t bring fresh air indoors and alleviate substances, 

such as the gaseous pollutant, carbon dioxide. 

The only method to reduce the concentration of these pollutants is ‘ventilation’.

Environmental experts recommend that we ventilate at least 3 times for 30 min every day 

between 9 AM – 9 PM when the air circulation is active, instead of early mornings and late nights.

Impact on the Human Body by Carbon Dioxide Concentration

In America, the indoor ventilation condition is recommended
at 2000ppm for the CO2 standard, but in Korea and Japan, the standard is 1000ppm

ASHRAE American Freezing and Air Conditioning Association (using this regulation in many countries around the world).

Risk & Impact of Carbon Dioxide on Our Health

Headache

When indoor carbon dioxide increases, the most common symptom is a headache from lack of oxygen. 

In particular, if you’ve experienced headaches while at home, you should suspect the indoor carbon dioxide concentration. 

Chronic Fatigue

Have you ever felt tired and not refreshed when you wake up from a deep sleep? When you’re sleeping, the indoor carbon dioxide volume must be reduced and plenty of oxygen must be provided. In particular, for people with sleep disorders or snoring, high indoor carbon dioxide concentration is very dangerous. If you can’t fix your sleep disorder, you must increase indoor oxygen concentration. 

Reduced Focus

When indoor carbon dioxide concentration increases and oxygen concentration decreases, a sufficient amount of oxygen isn’t provided to the brain, reducing focus and learning ability. If you have a student in your house, you have to pay particular attention to indoor carbon dioxide concentration and oxygen concentration. 

Anemia, Dizziness

Pregnant women require 50% more oxygen than other people. It can be fatal for pregnant women if the indoor carbon dioxide concentration is high, and oxygen is low. Common symptoms are anemia, dizziness, and insomnia, and in a worst-case scenario, it can cause premature birth or developmental disability of the child. 

High indoor carbon dioxide can also cause a decline in children’s height growth, focus and ability, and for adults,

indoor carbon dioxide can cause sleepiness and stuffiness.

If you’re spending more than 80-90% of the day indoors,

indoor air pollutants from various causes are greatly impacting your health consciously or unconsciously.


Indoor air quality management is important because we can prevent it if we respond to it in advance.


In a complex, enclosed living space, various human activities, such as carbon dioxide from breathing, germs from coughs, sneezes, and talking, and dust on clothes and shoes, can pollute indoor air.

Ventilation is important for indoor air quality management 

Response methods for each cause of indoor air pollution are diverse, but the most important indoor air quality management method is ventilation. If there’s insufficient ventilation, pollution will become worse and the impact on the human body will be greater.


Thus, sufficient ventilation is necessary for healthy, pleasant living, and the most affordable and effective indoor air quality improvement method.

If you’re spending more than 80-90% of the day indoors,

indoor air pollutants from various causes are greatly impacting your health consciously or unconsciously. 

Indoor air quality management is important because we can prevent it if we respond to it in advance.

In a complex, enclosed living space, various human activities, such as carbon dioxide from breathing, germs from coughs, sneezes, and talking, and dust on clothes and shoes, can pollute indoor air.

Ventilation is important for indoor air quality management. 

Response methods for each cause of indoor air pollution are diverse, but the most important indoor air quality management method is ventilation. If there’s insufficient ventilation, pollution will become worse and the impact on the human body will be greater.

Thus, sufficient ventilation is necessary for healthy, pleasant living, and the most affordable and effective indoor air quality improvement method.

Regular Ventilation Method

Ventilation refers to the process of discharging polluted indoor air outdoors through the power of nature or a machine, 
such as air movement by temperature or pressure difference, and providing clean outdoor air indoors to remove or dilute pollutants.

Ventilate at least 2-3 times a day

Spring/Summer/Fall
You should always keep the window 5-20cm open to the point that you’re not cold.

Winter
If you keep the window open for a long time, it’ll consume a lot of energy and possibly evade ventilation due to cold wind, so you should open it for 1-2 min every 2-3 hours.

Ventilate for at least 30 min after cooking

You should ventilate naturally
for 30 min after cooking.

If you don’t ventilate indoors, carcinogens will accumulate.

Maintain Optimal Indoor Temperature & Humidity

-You should always maintain optimal indoor temperature and humidity for pleasant indoor air.

Category
Summer
Spring / Fall
Winter
Optimal Temperature
24~28โ„ƒ
19~23โ„ƒ
18~20โ„ƒ
Optimal Humidity
60%
50%
50%