Name: He Fixes Air
Uploaded: 2026-02-11T17:09:23.000Z
Duration: 3 min 8 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

We found a man who is fixing Africa's air pollution with motorbikes.

Engineer was really frustrated with the air quality in his city, Kampala, Uganda.

But when he tried to find out how polluted the air was, he realized that no one knew.

No one knew how polluted the air is, because the sensors to test air quality cost $30,000.

This was not just a problem in his city, it was a problem everywhere.

Only seven countries in all of Africa had collected data about air quality.

If you don't know how bad the air is, how can you?

This is partly because of the huge cost of setting up air quality monitoring stations.

So Engineer worked and worked until he made a device that could test the air for just $150.

He made hundreds of these sensors and put them on motorbikes.

Because an air sensor on a building can only test one place at one time.

But if you put one sensor on a motorbike, you can test 100 places in one day.

Now there are over 150 air sensors all around Uganda on motorbikes, on top of buildings, on top of traffic lights, everywhere.

Before, no one knew how polluted the air was.

But now everyone knows and they want to fix it.

His invention is making people clean the air.

The government of Uganda has created a new rule to protect the air and have used our data about air pollution to make it happen.

Because of this incredible idea, google.org awarded Engineer and his team over $3 million in grant money that helped make all of this happened.

It allowed us help many people and expand many more places, not just in Kampala, but

all over Africa in eight different cities.

We need more people like him, like the motorbike riders, like google.org and the entire community to come together and fix the air we breathe.