| 摘要 |
PROBLEM TO BE SOLVED: To improve an environment in use by interception of a malodor from a disaster toilet 1, prevention of blowup from an underground space, and the like.SOLUTION: A toilet bowl 3 is provided in an upper opening of an underground space 5, and a retainer part 11 is provided below the toilet bowl 3. The retainer part 11 divides an internal space of a cylindrical concave part 10 into upper and lower parts, and insulates the upper opening from the underground space 5. |
