Our vacuum cleaner tests are different. We not only use an independent panel but we conduct over 70 individual tests just focusing on dust and debris pick up under laboratory conditions - as a result we know some vacuum cleaners can only pick up 30% of the fine dust we challenge them to suck up, while a Best Buy can vacuum up to an impressive 90%. But that's not all, there's a whole raft of other tests looking at noise levels, ease of use, pet hair and more. | Which?