Bluon HVAC has teamed up with measureQuick to provide technicians with "just-in-time" training and education. Here, Jim Bergmann explains why it's important to test your vacuum pump before connecting the pump to a system. This can save you time and effort, and ensures you have a functional vacuum pump before you start working. More training and tech tips can be found on the Bluon app available on Google Play and the App Store. | HVAC School

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?