Do N95 Masks limit us breathing of Oxygen Cover

Do N95 Masks Deprive Us of Oxygen?

Wearing masks for hours on end has led some people to worry about whether N95 masks deprive us of oxygen. Scientists have actually made people wear N95 masks and measured their blood oxygen. So we have a solid answer to this question, and it’s not what this question assumes. This … Read more

Which Gym in Beijing Has the Safest Air?

Even though PM2.5 levels are falling, years of bad air pollution across China has led to many people installing air purifiers in their homes. Most of us are now breathing cleaner air at home, but what about when we are in public spaces? What’s the air like in that gym … Read more

What Time of Day Is Air Pollution Lowest?

My intuition has always been that there is least air pollution at night because there are fewer cars on the road and fewer factories humming at that time of day.   Pollution Time of Day Guesses   Apparently I’m not alone: 139 voted for their guess about what time of day … Read more

Smart Air is a social enterprise that creates simple, no-nonsense air purifier and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.