

Episode 5: “Removing Toxins and Stains”
- 5 of 12
- August 4, 2007
- 24 min
- Aired
From Acino, the anime encyclopedia
| Series | Sayonara, Zetsubou-Sensei |
|---|---|
| Episode | 5 of 12 |
| Original air date | August 4, 2007 |
| Episode length | 24 min |
| Studio | Shaft |
| Previous episode | Episode 4: “From Elbow to knee” |
| Next episode | Episode 6: “Leap Before You Look” |
“Removing Toxins and Stains” is episode 5 of the anime Sayonara, Zetsubou-Sensei. It first aired on August 4, 2007.
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About the series

Sayonara, Zetsubou-SenseiTV series · 2007 · 12 episodes · Shaft · ★ 7.84
Sayonara, Zetsubou-Sensei is a 2007 Japanese anime television series based on the manga series by Kouji Kumeta. It is animated by Shaft. It aired from July 8, 2007 to September 23, 2007, with 12 episodes.
Read the article →References
- “Sayonara, Zetsubou-Sensei”. Kitsu. Retrieved October 22, 2026.
- “Sayonara Zetsubou Sensei”. MyAnimeList. Retrieved October 27, 2026.
Episode titles and air dates come from Kitsu. The summary is written by Acino with AI assistance and checked so that it does not copy other sites.