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Window rebate vents Instead of a ventilation system: When is the simpler solution the better one?
August 10, 2026
When are window rebate vents a better alternative to a ventilation system? Find out more about the benefits, cost-effectiveness and mould prevention.
Window rebate vents at a glance: the benefits of tilt-and-turn windows
June 15, 2026
Modern windows must not only meet high standards of thermal insulation and airtightness, but also allow for controlled air exchange.
30 % more power: What modern window rebate vents are capable of today
April 20, 2026
Modern window rebate vents s offer higher airflow whilst maintaining the same level of comfort. Find out how new technology ensures reliable air exchange and greater planning certainty.
FFL-smart - How an intelligent window rebate vent automatically regulates the air flow
March 12, 2026
How can fresh air be reliably supplied to a room without wasting energy or causing inconvenience to the user?
What is the difference between a window rebate vent and an air inlet?
February 16, 2026
Window rebate vent or a air inlet? Find out about the differences, how they work and what matters when it comes to controlled ventilation.
What are the benefits of a window rebate vent? – Fresh air, lower energy consumption and a better indoor climate
January 13, 2026
Benefits of window rebate vents: Fresh air round the clock, protection against mould and lower energy bills – here’s how to improve your indoor climate.
Who can fit a window rebate vents? – Easy installation for DIY enthusiasts and professionals
November 24, 2025
Who can install a window rebate vents? Find out how the installation works and when you should call in a DIY enthusiast or a specialist firm.
Do I really have to ventilate? – Tenants’ obligations & help from window rebate vents
October 1, 2025
Many tenants wonder how much they actually need to ventilate their flats to avoid problems with mould and potential claims for damages. According to case law, tenants are reasonably expected to ventilate their flats thoroughly twice a day at flat.
For which windows is a window rebate vent a good idea? – A guide to a healthy indoor climate
August 12, 2025
Whether it’s a new build, a refurbishment or a modernisation – fresh air inside your home is essential. In which situations is a window rebate vent particularly useful? That’s exactly what we’ll be looking at in this article.
How does a window rebate vent work? – Effective ventilation without electricity
July 8, 2025
Fresh air is essential for a healthy indoor environment – but you don’t always want to keep windows open all the time or rely on electric ventilation systems. This is exactly where window rebate vents comes in.
Which windows are window rebate vents suitable for? – An overview of all the options
July 4, 2025
Window rebate vents offer a smart solution for fresh air and a healthy indoor climate. But will window vents actually fit in my windows?
We are Regel-air.
Our patented ventilation systems make an important contribution to a healthy indoor climate. These systems reduce humidity in the flat, thereby preventing mould damage.
Find out moreDo you have any further questions?
We’re happy to help.
Our staff answer lots of questions every day about window rebate vents and ventilation. Here you’ll find answers to the questions we’re frequently asked.
If you have any further questions, please feel free to contact us.
Made in Germany
Europe-wide delivery
Over 25 years in business