Which type of fire extinguisher may damage electronic components?

Class C fire extinguishers, which contain carbon dioxide (CO2) or clean agent chemicals, are generally safe for use on electronic components as they do not leave residue. However, Class A and Class B extinguishers, which may contain water or foam, can potentially damage electronics. Additionally, dry chemical extinguishers (Class B and C) can leave a corrosive residue that might harm sensitive equipment. It's crucial to use the appropriate type of extinguisher to avoid damaging electronic components.