How many levels of disability is caused by carbon monoxide poisoning encephalopathy? This happened to my friend. When he was working in a garment factory in Haizhu District, Guangzhou, he was poisoned

How many levels of disability is caused by carbon monoxide poisoning encephalopathy? This happened to my friend. When he was working in a garment factory in Haizhu District, Guangzhou, he was poisoned by carbon monoxide while taking a bath in the dormitory of the factory, so he could not take care of himself. In October 213, 213, I went to a law firm in Nansha, Guangzhou to be a lawyer and provide legal aid. Later, he applied for work-related injury identification, and his disability grade was identified as Grade III, and labor arbitration awarded him more than 3, yuan. The lawyer said that the level of disability can only be determined according to the self-care situation after poisoning.