Unix 5000 is russian industrial gasmask.
Developed and manufactured by JSC "Sorbent"
There are 2 variants of mask:
MAG - civilian with standard 40mm attachment (2 or 1 attachment points)
Unix - industrial with bayonet attachments (this one)
There is no communication device in this mask (older models have it)
These type of masks IRL (rus):
https://www.youtube.com/watch?v=X42_ncGPoVY