article_snippet.sent: The tests of a grainy white substance came back negative and the quarantine of Room 239 of the Cannon House Office Building was removed at 3:37 p.m. on Wednesday, reports Triblive.
article_snippet.sent: After testing, assistant who opened the envelope was not advised to seek medical attention and was simply told to wash her hands.
article_snippet.sent: All clear with nothing hazardous found.
article_snippet.sent: The testing lasted just under two hours.