Simple past tense and past participle of filter.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "filtered" in a sentence
"“It meant people, not in the mass but individuals, who did me the honor of inviting me into their homes; people to whom I was no longer a name filtered through the wordage of imaginative press agents, but a person whom they knew.”"
"I see Facebook as an experiment in "filtered connections" in social networking."
"There is only one unexpected benefit of this otherwise noxious weed: its roots and leaves concentrate within them substantial amounts of polluting heavy metals which they have filtered from the lake."