Im looking for a low lying fog machine and im having loads of hassle trying to get from USA. Ive now found that maplins and conrad sell ordinary fog machines but i keep getting conflicting info, can anyone tell me if i want the fog to lay low on the floor, at least below the knee would i just use heavy fog fluid or do i have to buy a machine that uses ice to cool the fog for that effect? please help as i need it for a halloween house party cheers!!!!