Honeywell HPA100 HEPA Air Purifier for Medium Rooms - Microscopic Airborne Allergen+ Reducer, Cleans Up To 750 Sq Ft in 1 Hour - Wildfire/Smoke, Pollen, Pet Dander, and Dust Air Purifier – Black

Over the past 7 to 10 years, we have been purchasing this exact model for our house, and all of them still work perfectly. We live in a house that was built in the late 60s, have two cats and two dogs, and three teenagers. I am HIGHLY allergic to cats - if I pet them, I have to wash my hands immediately. The amount of pet dander in my home is outrageous. We also recently had our subfloor replaces in several areas of the house and it has caused a massive amount of wood-colored dust (we need to have our duct work redone and suspect it is a part of the dust issue in the house). These are strategically placed around the house for maximum cleaning.One, these are the best because you can place them against a wall. The downside is that it will create more dust on the wall near the air purifier. Simple logic - the air exits the top and what hasn't been sucked in through the device travels on a path that hits the wall. So you have to dust your wall - no big deal. I have to do that, due to just being noticeable, about twice a year.The hepa filters only need to be changed once a year, and the pre-filter every 3 months. When I change the pre-filter, I normally run a vacuum around the edges where there is dust buildup. This is unavoidable for any air purifier (I have tried many versions and keep coming back to this one).WHAT MAKES THIS THE BEST:- Durability. I have had our first one we ever purchased (maybe 7 to 10 years ago) running all day at the highest speed without going on turbo, consistently and there has been zereo degradation to the unit. It works as well today as it did when we purchased it many years ago.- White Noise. I like white noise, and unless it is on turbo, you don't really think about the sound once you get used to it. My pets are not afraid of it, which means it's just white noise to them as well.- Frequency of filter changes and types of filters. Sure you can buy the name brand filter replacements, but the generic ones are just as good and you save money. Honeywell's products are excellent from my experience, and the device itself has stood the test of time. For the filter replacements, you're just paying for the Honeywell name if you choose their higher priced replacements.-CLEANER AIR! Like I said, we have four of these now. One in my son's room which is a mother-in-law suite - the size is sufficient for the size of his room. The room was an addition built in the late 80s, early 90s, and the door to the outside isn't perfect (old house issues), and some outdoor allergens get into his room. Having one in his room has greatly reduced allergies during high pollen season (we are in the south, pollen is around all year). Since adding the most recent unit, the amount of the brown dust I have seen has been reduced. We also have one in our living room that is large enough to seat 10 people, and a home office. My newest one is located in another home office that I share with my dogs and their crates. Again, allergen reduction was easily noticeable once it was in place. The last one we own in in our bedroom because of my allergies (no pets allowed). I know it has made a difference because I have significantly less allergies in the morning than I did prior to putting one in our bedroom. My entire life has been one allergy attack after another, even after taking allergy shots. These units help me live life - WITH PETS I AM ALLERGIC TO - without a constant runny nose and itchy eyes.If you are looking for a unit that will not die in a year, or start making strange sounds after a few weeks of use, THIS IS THE UNIT YOU HAVE BEEN DREAMING OF! Like I said, we have had the same one for many years (we got our first one at a big box store and I can only guess that it was at least 7 years ago, but I suspect it was closer to 10).

*UPDATE 01/18/2020* After almost 4 years of continuing use of my Honeywell Hepa Air Purifiers they are still going strong! I now have 3 of these amazing machines, having replaced all three of my round Honeywell air filters. With regular maintenance and filter changes these air purifiers still do an excellent job of filtering the air in my home. I still have two cats in my home and my asthma has gotten a bit worse with age, but these Honeywell Hepa Air Filters still do an incredible job! The replacement filters are reasonably priced and the machines still maintain a virtually silent operation in the lowest setting. To sum up, 4 years later I am still very pleased with my purchase. Cheers! Tom F. - Chicago, IL.My chronic allergies and sinusitis have required that I use HEPA air filters in every room of my home. Over the past 20 years I have owned many different units, almost all of them were manufactured by Honeywell. While all had the same basic functions and worked quite well, this unit is by far the best and quietest air filter that I have ever owned. Consumer Reports rates this air filter very high and with good reason, because it's the best and most affordable unit on the market to date. The unit is very simple and offers double filtration, the extra thick charcoal filter is first, followed by the extra thick HEPA filter. The air is pulled in from the front of the unit where it goes through both filters and then comes out from an air grate on the top of the unit just behind the controls. This makes it a great space saver that can be placed almost anywhere, especially against a wall. There are 4 levels of filtration, #1) GERM, #2) GENERAL CLEAN #3) ALLERGEN and #4) TURBO.The 1st level GERM is virtually silent, I've never owned an air filter that is this quiet - it is the perfect level to use while watching a movie. #2) is a pleasant white noise that is barely audible and offers a great amount of filtration. The 3rd and 4th levels offer superior air flow and are so much quieter than my other Honeywell filters. While I still own multiple Honeywell filters and use them daily throughout my home, I will be replacing them with this unit as my budget allows. In searching for this air filter I looked very closely at comparable units priced as high as $600.- I was searching for an air filter that offered great filtration, but was also quiet so I could use it daily in my home theater room. After looking at almost 20 different units and brands in the $200-$600 price range, checking Consumer Reports as well as the Amazon consumer feedback I was won over by this Honeywell unit because of the price, the basic method of filtration, the very cool control panel, the fact that I could place the unit against a wall, the convenient size of the unit, and finally my positive experience over the past 20 years with Honeywell products. In the end I am very pleased with my purchase and would highly recommend this unit. One final note, the ability to turn the blue light off on the control panel is a welcome upgrade over my other Honeywell units. Thank you Honeywell & Amazon!