time and gravity are the best filters for mead. after you have racked the mead into the first carboy and topped it off with CO2 just let it sit. the cloudy stuff will settle to the bottom on its own. if this is taking to long and you want your mead now add some fining agents. they come in 2 types positively charged and negatively charged. they will bond to the cloudy stuff and make it settle to the bottom much faster.
positive agents:
Gelatin, egg whites, isinglass, sparkolloid
negative agents:
bentonite, keiselsol
just use one from each group and you should be good to go. they can be found online or at your local homebrew store be sure to read the instructions on the package. if you used any fruit in your mead you needed to add pectic enzyme a long time ago to break down the haze. it may still be OK to use it now.