Quote:
	
	
		| Originally posted by SinisterMotives The Living Air system is indeed a good one. From what I understand, it draws the  particles into the machine itself, eliminating the residue deposits that some of the other machines leave on household surfaces.
 | 
	
 It does.  I clean the ionizing plate about once a quarter, blow out the unit with my air hose and replace the HEPA filter (optional) about every 6 months. Very cheap and low maintenance.