The AirGenius 3 is mostly the same as the AirGenius 5, I actually like the AirGenius 3 a bit better, I never used the timer on my AirGenius 5, I also never turned on the accent lighting, and I did not prefer the touch style of buttons that the AirGenius 5 has.
I had my AirGenius 5 placed on a top shelf, so that I had to reach up high to turn it on, the power button on the AirGenius 5 is a standard button, so it was easy to press the power button to turn it on, but the speed changing button being a touch sensitive button, I had to sort of remember its location, and changing speeds was sort of a hassle with no physical button to feel and press.
Having had the newer AirGenius 5 and now the AirGenius 3, both have had a strange smell fresh out of the box, it was either a new plastic smell, or maybe a new motor smell, it is a bit annoying, but the smell does eventually dissipate.
This line of Honeywell AirGenius air filters, is indeed effective and requires no additional purchase of costly Hepa filters, it does require a regular effort of cleaning the electrostatic filter and the foam pre-filter, but if you are the type of person who does not like to buy hepa filters and you have the time to clean the Honeywell filters, then this should be a good air filter for you.
I clean the Honeywell filters in the shower area, I have a shower wand that has the adjustable water flow, I turn the flow onto a concentrated setting and the water on high, and the flow of water is all I have ever used in cleaning the Honeywell filters, of which I leave the pre-filter in the back cover and flush the dust back out the way it came in. I would suggest to never use really hot tap water when cleaning the AirGenius filters, just medium warm water, as I have had plastics crack from the sudden flow of hot tap water.
Overall this is a great air filter that is quite effective.
Who knows, maybe Honeywell will improve this product in the future and add a remote.
Even with the inconveniencing strange odor when this product is new, I feel as if it is still one of the best air filters on the market today.
The most important factor in me designating this to be one of the best air filters, is that it is made with a ball bearing motor.