[1] Coinciding with the 20th anniversary of the Prurient project, Rainbow Mirror was released as a 4xCD (the fourth being a bonus disc) and as a 7xLP, which was distributed by Hospital Productions.

[2] This Hospital Productions release bundled Rainbow Mirror with a limited cassette version of Godflesh's 2017 album, Post Self.

Writing for Exclaim!, Brayden Turenne said, "despite occasionally overlong runtimes, Rainbow Mirror is an album that encourages introspection and submerging oneself in their unconscious.

"[6] In a mixed review for the album, Louis Pattison of Pitchfork wrote, "for all its imposing scale, though, it lacks some of the dramatic finesse of classic Prurient.

[7] Andrew Ryce of Resident Advisor wrote, "At over three hours of half-lidded drone and ambient, Rainbow Mirror is one of the quietest Prurient albums, yet also one of the most demanding.