Tilt & turn windows are an innovative way of allowing airflow around your home as well as making cleaning so much easier. Not only do they open similar to a top or side hung window, but the frame can also tilt inwards. Therefore, giving you access to the outside pane. This eliminates the need for a professional window cleaner. It also means the window can be left open for airflow without compromising on security.
An extra benefit to having tilt and turn windows is that you can integrate them within bay or bow style windows. So, if this is your preferred design, you can go ahead without having to compromise.