If you are interested in the best home filtration systems then you should take a good look at the IQAIR Purifier. Now this system is not cheap but if you are looking for a top of the line air purifier this is it. It is the ferrari of home and business air purifiers. It can trap dust and dander as well as pollen as small as zero point three microns. This is incredibly small and virtually eliminates the air of all possible contaminates and allegens. This is especially good for anyone that suffers from bad allergies or has health or respiratory problems. Installing a few of these machines around your home can eliminate all of the allergens in your entire house. Usually people install them in their bedrooms and sometimes into either their family rooms or kitchens, it really depends on where you spend the majority of your time. If you spend the majority of your time in the garage or shed working on projects then it would be recommended that you install it there.Once it is installed it will run quietly in the background and you can forget all about it, the only difference you will notice is that your home will now be almost completely free of allergy causing contaminants.