The RL78/G14 microcontroller and HS300x sensor provides a motor control system solution with relative humidity/temperature measurement for predictive failure diagnostics. 
The solution also supports appliance safety standard IEC/UL 60730, and supports closed-loop feedback with relative/humidity temperature for recirculation of outdoor to indoor air. 
Power and timing solutions are also available to complete these solutions.
            
        RL78 / G14 ( Industry’s Lowest Power Microcontrollers ) Hardware User’s Manual
HS300x Family ( Relative humidity sensor ICs )