Koblenz Centauri Review

We appreciate the light design of the Koblenz. It weighs just 11.6 pounds, and the tubing and handle weigh 1.5 pounds. This model fits well in hand with the other controlling the handle. It did well on hardwood floors, but that is about it. We only suggest this model for light and quick cleaning.

Carpet Performance

The Koblenz picked up roughly 88% of the mess from low-pile carpet, while only grabbing 41.8% from the high pile rug. This vacuum struggled with all pieces of our debris mix (Cheerios, rice, and sand), and as we continued carpet testing trials, it appeared to get worse. On high pile, it mainly picked up Cheerios, but left behind almost all sand and rice.

Hardwood Performance

The Centauri was able to pick up 97.9% of the debris, impressively. Canister vacuums typically excel on hardwood flooring, and with a measured suction of 1767 Pa, we can understand why.

However, the rest of our hardwood tests were a challenge for the Koblenz. We placed sand in a slot of a bamboo mat. The vacuum was only able to grab 79.5% of this. Then, as we tried to clean coffee grounds from along the edge of a wall, we mostly just pushed them around.

Ease of Use

The Koblenz wasn't the easiest to maneuver around. The cord is short at 14 feet, and the two large wheels don't move well. At times, the suction was so strong that we would get caught on the carpet. The only way to fix this was by approaching the carpet at an angle. We had an easier time pulling the vacuum backwards though. Additionally, the vacuum is just 11.6 pounds, so it can easily be carried anywhere you need to go.

To clean the dust cup, it opens from the bottom and dumps its contents. To get a deeper clean, the two filter pieces need to be removed. We found rice stuck in these filter holes on more than one occasion and had a tough time getting them out. It includes a two-in-one attachment for upholstery that wasn't all that impressive. When seeing how much coffee it could clean up off our throw pillow, it left a lot behind. The brush is so narrow that we would need to go over the surface multiple times.

Pet Hair

On low-pile carpet, we were able to get 82% of the hair. Meanwhile, on high-pile, we picked up 64%. This wasn't great compared to others, but it wasn't the worst of the bunch. While we measured a strong suction from this vacuum, it felt fairly weak as we passed over clumps of dog hair. Suction isn't everything in terms of vacuum performance, and that was evident here. The bristles on the brush are short and ineffective at dislodging the hair to then get sucked up.

Before Testing After Testing

Filtration

Our final tests revolved around filtration. We looked for both small and large particles during this, which this canister wasn't terrible. It has an average peak of 203 for small particles and 25 for large. Those with allergies or asthma might want to search for a vacuum with better filtration though.

Should You Buy the Koblenz Centauri?

The Koblenz Centauri is a decent choice if you only have hardwood in your home and don't need to do major cleans. Because it struggled on carpet and upholstery, we recommend checking out another model in our canister vacuum review if you have either in your home.

What Other Canister Vacuums Should You Consider?

We think the Eureka Mighty Mite is worth taking a look at, especially if you are considering a less expensive model. This model is very powerful and tackles pet hair with ease. It isn't the easiest to use as the hose can sometimes come apart, but we still think it's worth a look. The Miele Classic C1 Pure Suction Powerline is a great option if you are willing to spend a little more. It has a suction adjustment for various surfaces as well as a very effective filtration system.