sanitary facilities; plumbing fixtures
Refers to toilets, washbasins, baths, and related plumbing installations in a building.
The sanitary facilities in this building are state-of-the-art.
Please inspect the plumbing fixtures.
トイレ is the common word for 'toilet' (the room or fixture), while 衛生設備 is a broader, more technical term for all sanitary installations.
水回り refers to the water-related areas of a house (kitchen, bath, toilet), whereas 衛生設備 specifically emphasizes the sanitary fixtures and their function.
Compound of 衛生 (hygiene, sanitation) and 設備 (facilities, equipment).