Materials (Wood)
Most woods can be both engraved or cut using a diode laser, but you should be careful when cutting constructed materials such as MDF and clipboard as the resigns can produce fumes that can be harmful to your health. There are alternatives in some cases such as laser safe MDF which will not release formaldehyde fumes when being cut.
As with all laser cutting, you should make sure you are in a well ventilated area and avoid any fumes by wearing a dust or respirator mask.