You can download this stock video footage (particles with soft bokeh) absolutely for free in all kind of usage.
Link to download: dropbox.
Video contains color rainbow particles footage background with soft organic bokeh.
What is bokeh?
Bokeh, also known as “Boke” is one of the most popular subjects in photography. The reason why it is so popular, is because Bokeh makes photographs visually appealing, forcing us to focus our attention on a particular area of the image. The word comes from Japanese language, which literally translates as “blur”.