Harinama in Vladivostok, Russia (Album with photos)
Srila Prabhupada: No one can be more pure than devotees. Anyone who once utters the name of Vishnu immediately becomes purified, inside and outside. Since a devotee constantly chants the Hare Krishna mantra, no contamination of the material world can touch him. He is, therefore, actually purified.
(Srimad-Bhagavatam 4.12.37 Purport)
See them here: http://goo.gl/Q0phqN