Coway AirMega 100: 200 m³/hr CADR Mechanical Filtration System for 300 Sq.Ft. Coverage

The engineering of the Coway AirMega 100 centers on the fluid dynamics required to achieve a 200 m³/hr CADR within a 300 sq.ft. envelope. The 3-stage filtration system creates a specific pressure drop that the motor must overcome to maintain a 99.97% capture rate for 0.3-micron particles. Unlike automated units, the manual speed control logic ensures consistent air exchange rates without the fluctuations often caused by sensor sensitivities. The 22 dB silent mode is achieved through precision fan balancing, while the 48 dB peak output reflects the maximum velocity through the high-density HEPA media. By maintaining a steady 200 m³/hr flow, the device ensures the 300 sq.ft. volume is cycled multiple times per hour. The absence of a PM2.5 sensor simplifies the internal circuitry, prioritizing the 99.97% filtration integrity over software-driven adjustments. This mechanical focus allows the activated carbon and HEPA stages to operate at peak efficiency for the duration of the filter's lifecycle within a 300 sq.ft. zone. The rear-entry airflow design is optimized to minimize turbulence, which helps sustain the 200 m³/hr CADR across the entire surface area of the filters.