on $*:TEXT:/[@!]removefilter*/Si:#: { 
  set %msg $iif($left($1,1) == @,msg $chan,notice $nick)
  %msg 7To remove the chat filter, copy and paste this: "10/mode $nick -f7"  without the quotes. 
  %msg 7Then 10restart7 your swift switch, mirc, or any other irc client that you use. 
}