Here’s a DIY laser rifle which can explode a balloon at around 150 feet (45 meters) as well as some angry chemicals at a similar distance. Since there are plenty of videos of lasers doing that ...

The Laser Designator can provide autonomous designation ... 50 caliber fixed forward machine gun. The armament systems combine to provide anti-armor, anti-personnel, and anti-aircraft capabilities ...

So the laser-cleaning machine has a certain frequency. Once its frequency is established within the laser source, that will be emitted through the handheld gun. Once it's pointed at your work ...