The CADS Flexeo 210 static ventilation units with heat recovery are designed for ventilation of apartment buildings or smaller commercial buildings using external fans and thanks to their low weight they are ideal for ceiling mounting (horizontally or vertically). The units are static, so they do not contain fans. The CADS Flexeo 210 static heat recovery units are equipped with a counter-flow plate heat exchanger without bypass, marked BP include heat exchanger bypass for summer operation. The counter-flow plate heat exchanger is made of plastic and is up to 94% efficient. The CADS Flexeo 210 static units are equipped with plate filters, M5 at the inlet and G4 at the outlet. The maximum recommended air flow volume is 210 m3/hr.