[4] In November 2011, Halo sent the LP demos to Hyperdub label head Steve Goodman, who responded with positive interest.

"[4][5] The album cover features an adaptation of Harakiri School Girls, a work by Makoto Aida which Halo chose for the artwork after seeing it at an exhibition on Japanese pop art in New York.

[17] Ian Cohen of Pitchfork called the album "something definitive" and Halo's "best and most cohesive work to date.

"[18] The Guardian wrote that "it manages to sidestep pretension at almost every turn, partly due to the near-naive vocals that dominate the warm crackle and glow.

"[5] Resident Advisor states "Quarantine binds her past sounds into a toxic, lush blend of ambient suspension and disorienting detail," and called the album Halo's "most immersive and beautiful work to date.