If you’re raising a baby in an urban area, you will unfortunately be exposing them to polluted air. And because children’s immune systems are not fully developed until they are around five years old, they end up inhaling more pollutants per pound of bodyweight than adults. That’s why a design consultancy developed an air purification system for strollers. The device contains specially-designed sensors which detect harmful gases and gently ejects cleaned air into the child’s breathing space in the form of a purified cloud. The purification device can deliver 1.5 liters of filtered air every ten seconds, resulting in a continuous barrier of clean air in front of the child.