Check out this eco-friendly air purifier from Alen Corporation with an air cleaning efficiency rate of almost 100%. Best of all, it uses only 55 watts of electrical power. How cool is that?! The main reason why many of us get allergies, colds and coughs mostly during winter isn’t because of the cold weather outside. It’s mainly due to the excessive toxic particle buildup inside the bedroom and home with almost no ventilation. Research states that an average US citizen spends approximately 90% of his or her time indoors during the cold winter months. Indoors they’re exposed to all kind of air contaminants like dust. This air purifier is something which will keep all these nasty allergies at bay.