PSFK featured a set of European billboards that display live readings of the noise level in the locations where they are posted. I guess we have become to immune to irrelevant clutter - both visual and auditory - that we now need a billboard to remind us of the decibel level and the value of products that can shut it out.
Because the product it is selling - a quiet Electrolux washing machine reduces the noise pollution in your home environment, I’d definitely rate this as efficient, clutter free marketing. Even in billboard form.
