My cats are suddenly shedding like CRAZY..I have a question?

I brush their hair daily and it just ends up all over the place and they are constantly shedding. I was wondering if there was anything out there that's like a grooming device for my cats that can also sort of 'vacuum' up any loose hair at the same time as I'm brushing them. I remember seeing an infomercial something about it being called PetZoom but I think that only brushes their fur. For anyone out there that is a cat owner, how have you dealt with this problem? I'd appreciate your advice and tips. Thank you