Clean air and water are essential to life The human body can go three weeks without food, but only three days without water and three minutes without air. Today, one in ten people around the globe live without basic access to clean water. From harmful gases in our cities, to infectious viruses inside our homes, air pollution poses a major threat to our health and our climate. This means that access to clean water and clean air is more important than ever. MANN+HUMMEL has many different products and solutions to tackle these challenges.