The Toilet is essentially a level 6 Med Bay room that only consumes a maximum of one power. The Toilet can be bought in the Dove Store for 100 Doves . The Toilet can be placed even if the player is already using a Med Bay. Fun fact, the room's abbreviation, WC means Water Closet, which is another way of saying Toilet.
The Toilet has the exact same functionality to the Med Bay except for its maximum power consumption. The Toilet's one maximum power makes it much more risky to use. Like the Bolter, one power 2x2 rooms are easily locked down (Unrepairable due to high damage). Thus, it's imperative to Armor the Toilet and have repair Crew nearby that will leave once the Toilet is repaired.
When To Use
The Toilet should usually be paired alongside the Med Bay in combat unless the player bought the Toilet to use a Med Bay before level eight. Pairing both the Med Bay and Toilet together can allow four crew to be healed at once. This is great when paired with heavy Teleport or heavy gunner ships due to how many Crew get damaged.
The Toilet should always be on if the player plans on using it. Below is an AI command put on Crew so they can use the Toilet when they are seriously injured. Also, the Toilet is categorized as "Medical Room" in AI coding.
Your Crew HP < 25% -> Target Your Medical Room (The Rest Of The Crew's AI)
The Toilet is buffed with the Science stat on crew. The formula used with this stat can be found here.