2,500 year-old records from ancient civilizations indicate concern for air pollution. More recently, during the Industrial Revolution cities were choked with smoke. Over time, we’ve learned ways to cut emissions, but the world is rapidly populating, urbanizing, and developing. Luckily,there are effective ways to protect yourself and the people you care about.

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.

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. To 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 keeping PM2.5 particles out of your lungs is a big one, but entirely possible!

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