It is impermissible for employees and workers to use the instruments and possessions of their companies or departments for their personal purposes. This is because doing so is tantamount to exploiting the rights of others without getting their permission while the Prophet (peace be upon him) said,
The property of a Muslim is unlawful (to take), unless (he gives it) willingly.
However, in the case that some instruments are to be thrown in the garbage; you are permitted to take them because their owners have already abandoned them. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.