The claim is directly corroborated by a web search result titled 'Will Hong Kong vapers go underground as public possession ban kicks...' which states: 'After the 2022 ban on the sale of vapes, he restricted his habit to one capsule every three days – equivalent to 20 cigarettes in terms of nicotine content – but continued to purchase pods online to sustain his supply.' This specific detail is reported by a single source, but the structure of the evidence suggests this is the primary source for this specific sequence of events. Given the nature of the evidence (web search results often summarizing a single narrative), and the high specificity of the claim matching the web result, it is treated as corroborated based on the direct match, though only one source is cited for the specific details.