The Levoit Core 200S is a high-performance, portable air purifier with True HEPA filtration to remove airborne pollutants from the air in your home or office. Levoit’s Core Series Air Purifiers feature VortexAir technology, which draws in and cleans the surrounding air, making them ideal for larger rooms like bedrooms, living rooms, and offices. Why do we need a Levoit Core 200S Air Purifier? This Levoit air purifier is Ozone hazard-free. It is an air-cleaning purifier that reduces harmful ozone and secondary pollution.