To protect themselves, most graffiti artists conceal their true identities and adopt a pseudonym in their work. "As for the mask, it's because the smell of the spray paint is too strong. If you don't wear one, it's really overpowering," says Bbrother.
塗鴉人為了自身安全，大多隱藏真實身份，而採用化名進行創作，「至於防毒面具，則是因為噴漆太臭，不戴的話味道實在很嗆，」Bbrother 說。