1. Even if the air outside looks clear, you must be cautious of PM2.5; an N95 mask is required for protection against it. 2. Ventilation is necessary indoors when using open flames, such as gas stoves. Additionally, if windows cannot be opened, an air purifier capable of reducing nitrogen dioxide levels is required.
What learners say
Learners find the course offers valuable, easy to understand guidance on identifying invisible indoor air pollution and applying practical ventilation habits at home. Reviewers note that the material clearly explains health impacts from fine particles and reactive gases, though a couple of individual ratings reflect rare negative experiences.
The lesson was so interesting,,,i've learned a lot and i will practise what i have learned.It also encourages ut to maintain cleanliness because it is safe for our health.Thank you
An excellent course. Fun and easy to read. I really enjoyed this course. The questions are simple, informative and useful for understanding. The practical advice was especially useful and easy to understand.
This is another very interesting lesson. It explains very well how pollution can be inside your house and how important is a good ventilation to prevent the pollution staying inside the house.
Air pollution occurs in ways that are often invisible to us. In modern society, the use of recirculating ventilation systems has become increasingly common, which may increase our exposure to airborne pollutants. What I have learned from this session has been very valuable and informative.
Nice to understand what air pollution could to your health, and how/what small particles could be bad for you. This course also teaches you what you can do at home to have a better air quality there.
A practical course revealing how everyday indoor habits create invisible air pollution. Covers fine particles, reactive gases, ventilation, and HEPA filters clearly. Perfect for beginners wanting to protect their lungs and create a healthier home environment.
A very useful and informative course, clearly explaining the main sources of indoor air pollution and their potential impact on health. The practical advice on ventilation, air purifiers, and air quality makes it particularly valuable for everyday life.
I really enjoyed this learning experience. The material was clear, practical, and easy to understand. I gained valuable knowledge that I can apply in real-life situations. Overall, this was a very useful and worthwhile course.