Vacuum cleaners have evolved technologically. Will clean our floors, whole now clean the air at the same time frame. The water clean was invented for this exact excuse. The water itself acts mainly because filter and she is designed to get mold, dust and dust mites, pollen and other allergens, and may other undesirable elements out of the air. How well do they work? Isn't it better when the hard earned dollars are staying in our country and putting other Americans to operate? Also, aren't you...