The ASP intervention will cover the harms and misleading marketing strategies of ASPs and other related information.

Students will report their opinions towards 5 statements:

1. Children who use e-cigarettes are more likely to smoke cigarettes in the future;
2. Hazards of secondhand smoke of e-cigarettes and heated tobacco products are slight;
3. Nicotine content in heated tobacco products is lower than in the cigarettes, which is more difficult to get addicted;
4. There are a variety of carcinogens in the heated tobacco products;
5. Tobacco industries do everything they can to get young people to use tobacco products.

All the statements have 5 options from definitely no to definitely yes. The options will be recoded into 0-4 or 4-0, as appropriate, with higher scores indicating knowing more about the harms and misleading marketing strategies of ASPs.

Students will report their opinions towards 2 questions:

1. Do you think the usage of e-cigarettes and heated tobacco products will harm your health?

   There will be 11 options from definitely no harm to definitely harm.

2. Do you accept the primary students use e-cigarettes and heated tobacco products?

There will be 11 options from definitely unacceptable to definitely acceptable.

If one of your good friends offers you an e-cigarette or heated tobacco product, ask you to have a few puffs, and no one will know about this as no more smoking in the future. Will you use them?

There will be 11 options from definitely no to definitely yes.