Lessons from History
Lessons from Science
In the past 50 years, studies made by universities, the World Health Organization, governments, NGOs, and other groups of scientists on the topic of the health effects of air pollution all contain the same advice: we should reduce exposure to PM2.5.
What is PM2.5?
PM2.5 is particulate matter that is 2.5 microns in size.
It’s generated by everyday human activity like cleaning or taking a plane ride, and also by nature from forest fires or volcanos. T
o give you perspective, a hair strand is about 60 microns wide, so the particles we’re talking about are 25 times smaller!
The job of protecting your lungs from PM2.5 is a simple one, but you have to do it!