REDI2SET Fresh-Air Vents are manufactured in many sizes to fit any size glass block window. Dryer Vents and Power Ventilation systems are also available. Maintaining the ability to ventilate in your basement is important; basements are often used for projects that cause odors, like painting, and there is always the chance of a sewer back-up.
Opening basements windows can be impossible! Removing old wood framed windows and using glass block windows with air vents can be one solution. These windows are available in prefabricated units for DIY installation as well. Click here to learn more - http://blog.innovatebuildingsolutions.com/2015/06/13/fix-top-5-basement-window-problems/