The ones you can’t see are the most harmful Often tired? Irritated eyes or headaches? How can we maintain a clean air environment?
	Who could ever have imagined that clean fresh air could be in short supply? Or that the air we breathe at home, at school or at work would make us feel ill? Today, such is the case. Indoor air is so full of pollution that many people fall ill or develop allergies by just breathing, working and living in it. This is why there will soon be one allergy sufferer in every household. And why more and more people are becoming affected – especially children.