Designed to provide your home wide-spread coverage, the Alen BreatheSmart, A350 & Paralda, Whole House Pack gives you protection from high allergen and dust levels all over your home. The Alen BreatheSmart HEPA Air Purifier makes cleaning the air simple. The BreatheSmart uses Alen's SmartSensor Technology to detect airborne allergens and pollutants, automatically adjusting airflow to protect you while saving energy and extending filter life. The BreatheSmart is both powerful and quiet, providing up to 1100 square feet of coverage with Alen's WhisperMax Technology, a specially designed fan and air chamber that maximizes clean air delivery while minimizing noise. That means you can enjoy both pure air and a peaceful environment.