Small in size but mighty in power, this 3-stage filtration air purifier combines a washable Pre-filter, a HEPA filter with a lifespan of 1 year, and 2 deodorization carbon filters with a lifespan of 6 months each (install 1 filter at a time to equal the 1 year HEPA lifespan). The unit also employs a filter change indicator, energy saving Eco mode, automatic fan speed control based on airborne particles, and an intuitive air quality indicator. The Coway Airmega Mighty Beige (AP-1512HHC) generates and maintains pure air in rooms up to 156 m²(1,680 ft²), the size of a typical bedroom.