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Moisture can fill carbon pores and reduce the space available for other chemicals to attach

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However, despite these efforts, challenges remain, as e-cigarettes, especially flavored ones, are still popular among middle schoolers

Banning them will keep them out of the hands of vulnerable young people. Join our commenting forum Join thought-provoking conversations, follow other Independent readers and see their replies Comments

Many makers would often skip official local hallmarking of items made for export to avoid any local assay taxation or fees, just like in this case