Laser products are classed by how much light can escape during normal use. For engravers the two classes that matter are Class 1 (the enclosure keeps the beam inside; safe to watch without glasses) and Class 4 (the beam or its reflections can injure eyes and skin and start fires). The laser inside a Class 1 machine is still a Class 4 laser; the box is what makes the difference.
Class 1 machines we cover
Enclosed but Class 4
An enclosure doesn't automatically mean Class 1. xTool lists the xTool F2 Ultra and xTool F2 Ultra UV as Class 4, and the xTool P2S as Class 4 in its standard version. Wear glasses rated for the wavelength whenever a lid is open.
Open-frame lasers
Machines like the Creality Falcon2 40W and xTool D1 Pro have no enclosure. Everyone in the room needs glasses rated for 455 nm, the machine needs a fire-safe base, and smoke needs extraction. They're fine in a garage or workshop, not in a living room.
Rules for every laser
- Never leave a running laser unattended.
- Keep a fire extinguisher nearby.
- Vent smoke outside or through a proper filter.
- Never cut PVC or vinyl: it releases chlorine gas.
Sources
Specs and prices checked November 4, 2026. Prices change often; confirm before you buy.
FAQ
Do I need glasses with a Class 1 laser?
Not while the enclosure is closed and the interlocks work. If you open the lid while it can fire, or modify the machine, wear wavelength-rated glasses.
Is a fully enclosed laser always Class 1?
No. Check the rating. Some enclosed machines are certified Class 4.