In tests, the Bissell Big Green left our test carpets soft ... require it to uphold the carpet’s warranty. Professional cleaners use stronger, more powerful equipment than what you can buy ...

We put these upright carpet cleaners through our extensive testing, which combines basic principles of physics and an abundance of patience. Let's look at some laboratory equipment and how we ...

Our testers are highly experienced in testing a wide range of products using calibrated equipment, and many sit on Standards committees and belong to other professional bodies. How we choose what ...