Is indoor air quality better than outdoor

In the world of air, all species are treated equally and there is no superiority or inferiority.

It is for this reason that air pollution is the most important of all forms of pollution that we need to be vigilant about. We don’t actively drink dirty water, eat harmful food, or come into contact with harmful objects, but when these become harmful gases and dust that are dispersed into the air, it is not up to us to eat or not eat them, whether we are poor or rich, old or young.


Human life, about 90% of the time spent indoors, we will instinctively think that indoor than outdoor safety, outdoor haze, dust, and odor, but the house doors and windows are all closed tightly indoors is really safe?

1. About 100 square meters of completely sealed space, about 5 or 6 hours after the person will be due to oxygen inhalation and lead to breathing difficulties.

2. The tiny doorways, windows, ventilation fans, and air conditioning ports of a house provide air exchange between the inside and outside of the house (about once every 5 hours), so the quality of indoor air is not necessarily much better than the outside world.

3. The formaldehyde and other harmful chemicals released by the home furnishings, plastics, PVC products, and other objects in the closed house, together with the harmful gases such as stir-frying and smoking, will most likely lead to indoor air pollution even more serious than the outdoor 2 to 5 times!

Is indoor air quality better than outdoor
Is indoor air quality better than outdoor

Indoor air pollution in general can be divided into three main categories:

The first category is particulate matter, in the sunlight or light, you can see particles floating in the air, these are due to the airflow brought in by the outdoor dust, pollen, pet hair or home clothing, bedding, and other woven fabrics down the lint, mites formed, the diameter of about 60 microns to 10 microns. 10 microns or fewer particles are called pm10, collectively called the respirable particles. PM10, collectively known as respirable particles, can pass through our nostrils and enter the respiratory tract without any problem. In particular, pm2.5, or particles below 2.5 microns, can even enter directly into the fine bronchial tubes and alveoli, affecting human physiology and very easily leading to asthma, allergies, and other lung diseases in humans.

The second category is microbial viruses or bacteria, which are also responsible for the transmission of colds, flu, and other related diseases. If a person has a cold, it is highly contagious to the people around them because of their airborne spread. In a closed environment, once the air is contaminated without timely and effective sterilization and purification, it will soon flow and spread and then be sucked in by others, thus forming a contagion.

The third category is harmful indoor air pollution sources, but also the most easily ignored – VOC volatile organic compounds. Home glue on the wooden floor, paint on the walls, storage of plastic materials, etc. will continue to release VOC volatile organic compounds, in the form of harmful gases emitted into the air, greatly reducing indoor air quality.

FS00802G (2)
Air Quality Monitor FS00802G

How to purify airborne pollutants?

The first step in purifying the air of pollutants is to know how to monitor the concentration of the pollutants in your home. Monitor the pollutants by using an Air Quality Monitor and improve the indoor air quality by using a fresh air system or air purifier.