Good news for the hundreds of thousands of homeowners without a ventilation system, or where existing ventilation is faulty or inadequate. This autumn Renson is launching the Renson Waves, the first fully automatic decentralized ventilation unit with humidity, VOC and CO2 measurement. The solution when a classic ventilation system is not possible for practical reasons.
For those who refurbish their bathroom, install an extra toilet or add a kitchen, the Renson Waves is the ideal decentralized ventilation solution. Unlike existing standard bathroom or toilet ventilators (manually operated via a switch, or automatically linked to the light switch), the Waves fully automatically tunes the ventilation level to the actual moisture content and odors it detects around the clock via built-in sensors. For example, after a hot shower, using deo or visiting the toilet.
In addition to the variant with a moisture and VOC sensor against odors, there is a variant with an additional CO2 sensor. The perfect solution for fully automatic ventilation in a total renovation where there is no room for ventilation ducts. The Renson Waves is suitable for every room, from the kitchen and bathroom to the toilet and even guest rooms. If there are people staying overnight and the CO2 level rises, the device will automatically activate. Through the accompanying app, the indoor air quality can be read in an instant. Self-operation is also possible when needed. Thanks to the personally adjustable profiles, 'eco', 'health' and 'intense', the user also determines which ventilation level best suits his or her situation.

The Renson Waves represents a giant leap for indoor air quality in existing homes.
"In the past, ventilation was linked to the light switch or a humidity sensor with timer," says Sam Lobbens, product manager at Renson. "But that way you never ventilate based on actual air quality. With the Renson Waves you can. "The device measures air quality 24 hours a day and shoots into action if necessary. That works both ways. Suppose you go to put on your glasses in the bathroom for a moment, the ventilation will not suddenly kick in. You ventilate only when you have to, so no unnecessary heat is lost."
The Waves is also hyper-intelligent as well as convenient to use. Thanks to built-in auto-calibration, depending on the length and resistance of the ventilation ducts, it knows how hard it needs to work to ventilate a room effectively. This also makes installation a breeze. The Waves is compatible with all (existing) ventilation ducts with a diameter of 100 and 125 mm. Thereby, the user can replace the old fan in no time. Then just follow the step-by-step guide in the app and the auto-calibration does the rest. Ventilation has never been so easy!
Evy was among the lucky ones to be among the first to test the Renson Waves.
"The timing is perfect because my current fan in the toilet just broke," begins Evy. The old fan on the toilet was replaced in less than 10 minutes and the results are amazing. "The previous fan only worked for the toilet, but the Waves also detects the air quality in adjacent rooms. We can now control CO2 levels on our upstairs floor without any breaking. Really super! And the nice thing is that you don't have to do anything for it yourself, the Waves controls everything automatically."
The measurement results confirmed Evy's feelings. After the installation, the average CO2 level was 450 ppm lower than before. Without the Waves, the CO2 level in the bedroom exceeded 1,200 ppm - the upper limit for healthy indoor air - for 3 hours a night; after the installation this was still the case for less than half an hour. The maximum recorded CO2 level also dropped from 3,000 ppm before to 1,500 ppm after installation. Thanks to the additional CO2 sensor, not only were the problems in the restroom solved, the air quality of the entire upper floor was greatly improved. And, of course, odor problems have also disappeared.