The extinguisher is rated for Class A, B, and C fires.
The label on the extinguisher specifies the fire classes it is certified to handle, indicated by the rating 34A 233B C:
Class A: Fires involving ordinary combustible materials such as wood, paper, and cloth.
Class B: Fires involving flammable liquids and gases like petrol, oil, paints, and lubricants.
Class C: Fires involving flammable gases.