The different colors of the balloons represent different air quality. According to foreign media reports, residents living in Paris, France can now look up to understand the quality of the air in the city. For them, look at the color of a huge helium balloon suspended in the air to determine the quality level of the air.
A company called Arophile recently raised a giant balloon over the Andre Citroen Park. According to reports, the model of this balloon is AERO30NGArophile 5500, with a diameter of 36 meters and a volume of about 6000 cubic meters (only 70 square meters of helium per month is needed to make up for the loss caused by air leakage), and the suspension height is 150 meters. Unlike a normal balloon, this balloon can constantly change its color as the air quality changes. As the planners of the plan said, now people can clearly understand the specific quality of the air without smelling it.
Thanks to the new high-brightness lighting technology, people can clearly see this colorful balloon suspended in the air even 20 kilometers away.
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Multi USB Port Charger
A multi-port USB Charger is a great way to charge multiple devices at once. These chargers are useful for families, work places and dorm rooms.Usually,a multi port charger with two or more inferances at the same time,it maybe Type C Charger and USB charger.
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