Review on Air handling unit Domovent Solo RA1-35-9 R by Adam Kotowski ᠌

The design is not well thought out. There are two rotation speeds: at low - it blows too much, it makes a lot of noise. At the same time, it works normally in one direction: with a uniform speed, and in the other, when switching, the nominal (high) rotation speed is first set, then the speed is reduced to the minimum. It is impossible not to pay attention to this. This is not a design, this is a hack! The declared characteristics in terms of noise level are not met. The technical data sheet says 27 and 32 dB at a distance of 3 meters. According to my measurements: 40 and 42! Sleeping at this level of noise is absolutely impossible! Filters are not able to contain dust or any small particles. No soundproofing included. It was possible to reduce the noise level by using a third-party impeller (fan blades) from an unused hood to the bathroom. At the same time, the blades themselves had to be cut, reducing their surface area. In this case, the air flow rate decreased, greatly reducing the noise (up to 32 dB). I'll change filters later. Bought for 5000 with delivery. Conclusion: do not recommend.