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The average person consumes between 10 and 15,000 litres of air every day! This is huge. In comparison, it consumes 2 litres of water and 1.5 kg of food in general. Unfortunately, this air is often more polluted than the outside atmosphere, particularly because of carbon dioxide, but this is far from being the only gas whose emissions are harmful.
A source of energy, poor ventilation, too little ventilation, high humidity, chemicals, scented candles, incense not enough sunshine… sometimes it becomes difficult to breathe clean air in your own home.
Are you afraid to breathe outside because the air is polluted? Start by improving your indoor air quality! Outdoor greenhouse gas emissions are responsible for global warming, rising sea levels, and species extinction… but carbon dioxide-laden air is also to be avoided.
However, despite its possible health effects, it would appear that the carbon dioxide content of air is not a good indicator of air quality.
The Netatmo Smart Weather Station is an efficient and practical way to know your humidity level, temperature… and the quality of your indoor air. Should you ventilate to let out carbon dioxide and other harmful gases to improve the atmosphere in your home? It tells you everything!
As we have seen, the air in your house or flat (but also in schools and public buildings) is more polluted indoors than outdoors, even though we spend 80-90% of our time there. The effect of polluted air on health is not the best, as you would expect… and carbon dioxide, of course, has a role to play in this pollution.
However, the French National Agency for Food, Environmental and Occupational Health and Safety (ANSES) points out that human occupation is responsible for most of the CO2 emissions inside a building. The production of energy and especially heat can also cause emissions of harmful gases, such as carbon monoxide or carbon dioxide. Of course, burning wood or oil is known for this.
The agency points out that carbon dioxide is an indicator of the level of containment and the quality of air renewal… but that it is not the same as an indicator of air quality.
However, it recommends that schools and other public places should have sufficient air exchange to avoid exceeding 1,000 PPM. This is a threshold of carbon dioxide in the air which undesirable effects are experienced (e.g. impaired reasoning).
The ESC is a specialised expert committee on "Risk Assessment of Airborne Environments" in conjunction with ANSES. In 2013, it was cited in a detailed 294-page report soberly entitled "CO2 concentrations in indoor air and health effects". The report denies that carbon dioxide is a good indicator of indoor air quality.
In fact: "The ESC recommends that no indoor air quality guideline value (IAQG) for CO2 should be developed, either for its effects or for the health effects of confinement. The measurement of CO2 alone cannot be considered as an indicator of indoor air health quality because of the results of this work.”
The reasons for this are explained as follows:
Indoor air quality, like the purity of the atmosphere and the health of the environment, plays a vital role for all living things. Overlooking carbon dioxide has been done before, and the consequences were what we are experiencing today: global warming and all the disasters that we are experiencing now and in the future. Don't neglect CO2 at home (or anywhere else)!