After the lecture, there will be a questionnaire. There will be a recommendation to buy some fire-fighting products under the table, which is voluntary and not mandatory.
I have listened to the class and found it very practical, at least much more useful than the general fire knowledge lecture. It also corrected some previous misunderstandings about me and my friends.
Rationally speaking, there will be words in the lecture that emphasize the necessity of having fire-fighting products at home, but I don't think it is a sales promotion, because there is still a fire extinguisher at home. If you have it at home, of course, you don't have to buy it, and you won't force it.
(1) What is the development prospect of the trainer industry?
In recent years, the domestic training industry has advanced by leaps