What’s the idea:

System to detect levels of oxygen/ carbon dioxide and open windows when oxygen level drops or carbon dioxide level rises, thereby preventing accidental deaths of children or pets locked inside the car.

All the students thought about this idea after reading/ hearing news about accidental deaths in cars due to suffocation. Valava, who plays football, has interest in junk art i.e. making useful items from waste and wants to become an entrepreneur so that he can give job to others as well.