HI EVERYONE REALLY NEED HELP ON A COUPLE OF THINGS VERY BADLY can anyone help me on telling me the difference between a filtration device(LIKE THE WEN ON AMOZON) and a dust collection system as my eyesight is getting VERY BAD TEARING UP BADLY AND I AM WORRIED MAKING AN APPOTMENT WITH MY EYE DOCTOR A LOT OF SANDING DUST IS IN MY LITTLE WORKSHOP THAT HAS NO VENTILATION AT ALL I do not need a DUST SYSTEM TO CONECT TO MY TOOLS I NEED SOMETHING TO PICK UP DUST IN THE AIR AS I SAND BOTH WITH MY DRMEL AND HAND SANDING REALY NEED YOUR HELP GUYS. THANKS Don