I passed the Class 1 Sanitation Manager exam in 2025 using this text and problem set. The original price was around 7,000 yen, so this is a bargain. Basically, I think you can pass the exam by studying the problem set and printing out past exam questions from the internet. I made some notes on important points during the course, but the answers to the problem set are not written, so you can still write in it. I mainly used the problem set, so it shows some signs of use. Please understand that this is a used item. Published by: Central Labor Accident Prevention Association