10 Reviews: Best Air Purifiers for 500 Square Feet (Dec 2023)

If you’re looking for the best air purifier for large places with Wi-Fi capabilities, this is the one for you. This air purifier combines its internal filters into one Advanced Max2 Filter Set to cover such a large area; the True HEPA Filter removes 99.97 percent of pollutants down to 0.3 microns, while the Activated Carbon Filter captures 99 percent of volatile organic compounds (VOCs) and odor-producing particles. This air purifier is ideal for open floor plans, basements, offices, and other indoor spaces with extra-large rooms.

What a wonderful air purifier and it runs so quietly that you will hardly notice that it's on. I bought one of these for my daughter and she lives in an area with lots of fires and smog (CA). She has two young babies and this wonderful machine keeps the air clean and fresh. We live in Chicago, where the pollen is unbelievable,. I suffer from hayfever. But this wonderful machine has kept out the pollen, kept the air clean allowing us to sleep and breath so much better.

by Fred Pfeifer

The Austin Air HealthMate HM400 is a simple device with no extra bells and whistles. You switch it on, select a speed, and breathe in the clean air. It differs from conventional air purifiers in that it provides 360-degree air filtration, which means it draws air in from all sides to enhance airflow and allow for more flexible positioning inside a room. It’s the ideal air purifier for such a vast space.

HEPA filter captures 99.97% of particulates 0.3 micron and larger which viable virus attach themselves to travel. Its activated carbon filter stage adsorbs odor also but only lasts a several weeks before it gets saturated. Filter lasts about 5 years for normal home use. Works also if you are allergic to pollen or mildew spores. On low speed you could hardly hear it. Great for COVID and beyond.

by SOh

If you want a machine that will remove all traces of pollutants from your home, you should look at this air purifier. It used modern PECO filtration technology, which eliminates airborne contaminants at their source, as well as PECO nanotechnology, which eliminates allergies, mold, germs, and viruses, resulting in the cleanest, healthiest air possible.

Quiet, variable speeds, replaceable filters, and an outstanding contemporary aesthetic.

by Carol S

The 4-Stage Air Cleaning System with one of the best grade HEPA filters available; Pre-filter, Medical Grade H13 HEPA Filter, Activated Carbon Filter, and Ionizer, is what makes this device so good. This powerful air purifier eliminates pollutants of all kinds, resulting in a healthier environment in the space where it’s installed.

I've had a problem with excessive dust. Probably due to my two dogs. I've had this unit now for about a week and I am impressed with how well it has significantly reduced the dust accumulation. We'll see how long the filter lasts but so far I am very happy with this purchase.

by John B

The next item on the list is an extra-large room air purifier with the option to adjust the internal HEPA filter and select a front panel design that best suits your demands. It lets you choose from four different True HEPA filter types: HEPA-Pure, HEPA-Silver, HEPA-FreshPlus, and HEPA-OdorCell. Oh, and it comes in 14 various colors and styles, so you may pick your favorite.

So far i love it! I have only had it a month or 2 but it has definitely made a difference. I have some allergy issues and i have 2 inside dogs with allergy issues and it has helped all of us.

by Joan C.

This Rabbit Air MinusA2 air purifier is a wonderful alternative if you have a space that isn’t too big. It comes in three different models, depending on how much coverage you require. What makes it excellent is the six-stage air filtration system ensures that the air you breathe in your area is clean and clear.

Fantastic! Easy to install. Easy instructions for using it. Cleans aire quickly and easily.

by Donald W.

The Dyson Pure Cool TP04 is a huge bladeless air purifier, and to be honest, it wouldn’t be a Dyson without blades. It’s small, but it’s about 42 inches tall, thanks to its design. It does, however, appear to be quite attractive. It does not have all of the smart connectivity, but it does have a smart filtration system and a beautiful look.

Love the Dyson Air Purifier. It runs quietly in lower settings but has a convenient sleep timer to make sure it does not run all night. Considering upgrading next year to the one with Wifi link.

by Ben Stapleton

This air purifier looks like a vintage HiFi speaker while also being ultra-contemporary. This thing would look great everywhere and make people wonder what it is! The Bissell air320 has a three-stage filter system that includes a pre-filter, True HEPA filter, an activated carbon filter. It will clean the air in a 1,000 square foot space with relative ease with those three filters, which is good for this price point.

We love our unit. We have found that it makes the air very crisp and clean, gets rid of our food smells and is very easy to use. The design is like a little mid-century modern unit but feels like a slick new design. The size is perfect for our 2,500 sq feet office and it blends into our decor perfectly. We can't imagine going without it now.

by Amy Marinari

Next up is an air purifier offered by Sharp, one of the most well-known electronics companies in the world. Sharp FP-A80UW has a high fan power and can cover up to 455 square feet. This air purifier has a CADR of 303 Dust/293 Smoke/360 Pollen (cfm) and an ACH of 5X. Furthermore, thanks to the combination of True HEPA filter and Plasmacluster technology, it has high efficiency in trapping airborne contaminants.

I have one of these and two of the smaller version. I leave the speed on automatic and the units mostly run on the lowest speed which is barely audible. They help noticeably with my allergies to dust, mold, tree pollen and cat dander.

by David Barnett

IQAir might be a true giant in the air purifier industry, with the best air filtration system and great fan power to keep your room clean quickly and effectively. The IQAir GC MultiGas is the champion of large room air purifiers, with a coverage area of up to 1125 square feet. The IQAir GC MultiGas also has a strong New Edition Fan, which is equally significant. GC MultiGas can achieve a Clean Air Delivery Rate (CADR) of 300 cfm with this revolutionary technology. IQAir GC MultiGas loads 5x air changes per hour to maintain this high CADR (ACH).

Although a high ticket item, this product is definitely worth the money. Clears dust, scents, chemicals, mold, maybe even viruses from your home or office. I just bought a third one. My and my pets allergies and sensitivities are so far down; my asthma has been better too. Best thing I did for myself while home with the viral shelter in place.

by Brian Crouse