Fortunately, Origin aluminium windows are extremely low maintenance. It is very simple to clean Origin’s OW-70 Slimline and OW-80 Premium frames. For the internal side, all you need is a sponge or non-abrasive cloth, warm water and a mild household detergent that works for metal surfaces. It is not recommended to use a Paraffin-based cleaning product or non-abrasive liquid cream cleaners.
If you have a stain that won’t budge right away, you can gently try with an ink rubber. However, if this doesn’t work straight away you should abandon this. For drying your Origin windows, use a sofa cloth. For cleaning the external side, use a hose to spray down the frames, use the same mild detergent you used on the inside, then wipe the frames with a damp cloth.