The Alexapure Breeze four-stage purification process removes all allergens, dust, mold, pet dander, pollens, bacteria and viruses. If you suffer from allergies, the Alexapure Breeze helps alleviate the runny nose, sneezing, itching and irritated eyes. If you have asthma, it can reduce your frequency and severity of attacks and need for inhalers. If you live with COPD, it can help you breathe easier. Features Made of plastic and electronic components 4-stage purification process for superior air quality Patented technology kills airborne microbes Final byproduct of clean water (not ozone) Intelligent air quality sensor and indicators Easy to clean and maintain Silent mode at 16dB – quieter than a whisper (30 dB) Cycles 120 cubic feet every 12 minutes Air change per hour (ACH) exceeds Allergy Asthma Foundation recommendations Space-saving design – about the size of a large briefcase for rooms up to 800 square feet Dimensions: inches thick x 13.5 inches wide x 21.5 inches tall Color: White.