The filters actually come wrapped in airtight plastic bags to ensure freshness, so don’t just take it out of the box and turn it on—remove the plastic wrapper from each filter first. The number honeywell purifier and placement of filters differs depending on which model you get, so be sure to read the instructions. Breathe easy and reduce airborne allergens with this Honeywell air purifier.
Our journalists combine independent research with (occasionally) over-the-top testing so you can make quick and confident buying decisions. Whether it’s finding great products or discovering helpful advice, we’ll help you get it right (the first time). We have also removed from this list many since-discontinued models we tested. The 200M shares the Mighty’s display-shutoff feature, which we value highly because it turns off the overly bright air-quality indicator lamp and makes the 200M much more conducive to bedroom use. Visually, the 200M differs from the Mighty in that it has a square grille instead of a round aperture; like the Mighty, it’s available in both black and white versions.
The Prolux warranty does not apply to any non-Prolux branded products or Services (including repairs). On top of having a pre-filter, this large room air purifier also includes an R Certified True HEPA Filter. This certified Honeywell True HEPA R Replacement Filter traps up to 99.97% of microscopic allergens down to 0.3 microns from the air that passes through it. This includes dust, pollen, pet dander, dust mite debris, mold spores, and smoke allergens. This HEPA room air purifier performs best when filters are replaced once a year as needed (initial filter included). Just like the pre-filer, the True HEPA filter/check reset light will also alert you when it is finally time to change the filter.
Many of today’s air purifiers feature an Auto mode that adjusts the fan speed based on the air quality. Though it’s Energy Star-certified, the Honeywell HPA300 True HEPA Air Purifier doesn’t have an Auto mode and had high power consumption in our tests. Along with its high up-front cost, the Air Mini+ is also expensive to maintain, requiring a $90 replacement filter every six months. But on its medium setting, the Air Mini+ still draws more electricity than the far-more-capable Coway Mighty (our top pick among purifiers and a machine capable of keeping the air clean in a far larger space). As with its larger sibling, we do not recommend the Molekule Air Mini+.
We later learned that many of the company’s advertising claims were found to be baseless, and Molekule subsequently retracted almost all of them. (You can read about the saga in our reports from February and June 2020; the Air was then known as the MH1.) That year we also tested a Molekule Air Mini and judged it to be similarly poor. The 211i Max’s filters have a shorter replacement cycle than many of our other picks, at six to nine months (versus a typical year).
Both models achieved this, cutting the particulates by half or more in 50 minutes. Most air purifiers arrive with the filters installed—but they are also sealed in plastic wrappers. The HEPA filters should have an arrow or other marking to indicate the correct orientation. If you specifically need to address high levels of volatile organic honeywell purifier compounds (VOCs), we recommend the Austin Air HealthMate HM400. Like our other picks, it uses a HEPA filter to capture particulate pollutants. But it also contains a massive, 15-pound adsorbent filter (composed of activated carbon and a class of mineral called zeolites) that efficiently captures gaseous pollutants such as formaldehyde.
But because of its higher energy consumption, it costs more to maintain than our current budget pick, the Clorox Medium room. And it’s a tall, garish device that won’t blend into any decor outside of an Alien set. The Coway Airmega 150 is the first small-space machine from that company. It’s sharp-looking, with a clean rectangular form and a muted, matte finish available in several colors. But at its typical price of $190, it’s too pricey for a machine made for spaces no larger than a bedroom. The Levoit Core 300, a former budget pick, is far less energy efficient than the current pick, the Clorox Medium Room, and also lacks most of the liveability features that set the Clorox apart.
A convenient indicator light notifies you when the HEPA filter needs replacement. Running at an energy efficient 2.8 amp draw, the cost-effective X-3580 features a powerful high torque 1/2 HP motor that can sanitize the air in rooms up to 1500 sq. With a 5-speed control, you have the flexibility to run the unit on a quiet low speed during working hours and then ramp up the speed to run the purifier overnight.