This 350W KNOKOO fume extractor has a 4-layer filter system, and when I used it, the smell of the laser at work was gone. These smells used to bother me, and I was afraid they would hurt my lungs. I bought it for my health. When I first received it, I contacted them to use it correctly, and their service staff was very good at contacting me quickly. I received all the required information and guidance.

got it for my 50w OMTech polar and it works great. have it in my apartment and it is in one room and I have a Dyson fan in the other room with a PPM sensor and it doesn't change at all when using the laser cutting 3mm wood so I know its working and I am only running it at 40% power so maybe overkill but at 40% power its really quite. there is no smell from the laser cutter about 5 feet away from it. now its just a matter of how long the filters last.

Since I do a lot of metal cutting with laser which I do it indoor, I purchased this purifier and works great. Motor is super quiet, and it is super speedy and strong. There is a digital screen on the unit, so I can adjust the speed. Furthermore, hose is included which very flexible, so adjusting is easy. Highly recommended.

This 350W KNOKOO fume extractor has a 4-layer filter system, and when I used it, the smell of the laser at work was gone. These smells used to bother me, and I was afraid they would hurt my lungs. I bought it for my health. When I first received it, I contacted them to use it correctly, and their service staff was very good at contacting me quickly. I received all the required information and guidance.

got it for my 50w OMTech polar and it works great. have it in my apartment and it is in one room and I have a Dyson fan in the other room with a PPM sensor and it doesn't change at all when using the laser cutting 3mm wood so I know its working and I am only running it at 40% power so maybe overkill but at 40% power its really quite. there is no smell from the laser cutter about 5 feet away from it. now its just a matter of how long the filters last.

Since I do a lot of metal cutting with laser which I do it indoor, I purchased this purifier and works great. Motor is super quiet, and it is super speedy and strong. There is a digital screen on the unit, so I can adjust the speed. Furthermore, hose is included which very flexible, so adjusting is easy. Highly recommended.