On 22/08/2014 17:19, Arfa Daily wrote:
... if we've now got to start shaving a few watts off the motor of an
appliance that these days is probably used no more than 15 minutes a
week, in order to save power. I refer of course to the new vacuum
cleaner motor power directive from our chums at the EU ...

I would be happy if manufacturers were obliged to publish some agreed
measure of efficiency. Airwatt comes to mind.

http://en.wikipedia.org/wiki/Airwatt

Preferably the measurement is made after picking up a few kg of plaster
or other fine dust!