Honeywell Air Purifiers & Filters FAQs

Reflects how intuitive and easy the controls are to use, carrying ease, ability to remove the filter, and filter life indicator. Some concentrations of organic chemicals are higher indoors than outdoors. In other scenarios, contaminated outdoor air may honeywell air purifier be introduced into a building through ventilation to achieve unintended consequences. Honeywell HEPA Portable Air Purifiers offer a simple solution to help clean the air. Our purifiers allow buildings to have extra filtration support within each room.

honeywell purifier

And even on its highest setting, at which it emitted an intolerable 66 decibels, the Air Mini+ reduced the smoke only by 91%; the Levoit captured 97.4% on high, while emitting 54 decibels. That’s a bit too loud for continuous use, but it’s less than half as loud (in terms of human perception) as the Air Mini+. Blueair explained in an interview that these attributes are the result of several engineering updates working in concert.

And it’s a tall, garish device that won’t blend into any decor outside of an Alien set. But both of those models have been retired, so in January 2023 we purchased and tested the company’s current models, the Molekule Air Pro and the Molekule Air Mini+. For optimal performance, vacuum, wipe down, or rinse off the prefilter (it looks like a window screen or plastic netting) every month or so. The prefilter catches larger particles, such as pet hair, and keeping it clean helps the HEPA filter work unimpeded on fine particles.

The 311i Max and 211i Max that now hold these spots are slightly higher performing and have improved energy efficiency and liveability features, but the older models are truly excellent in their own right. The 211i Max is a thrifty operator, drawing just 41 watts on its highest setting, and 18 and 11 respectively on the medium-high and medium-low settings where you’re more likely to run it during normal use. Like the smaller 311i Max, its engineering has been updated with a redesigned motor and fan blade. Relative to its predecessor (and former pick), the Blueair 211+, the 211i Max also has a more porous outlet grille and a slightly flared design with a larger, less dense filter. In 2017, we created wildfire conditions in our Los Angeles office and tested several purifiers.

Perfect for bedrooms, playrooms, and living rooms, this purifier is one of the highest-performing, most-durable, and most-economical models we’ve tested. With thoughtful extra features, the Honeywell air purifier includes a True HEPA filter to help you breathe easy. It’s hard to measure the true effectiveness of an air purifier at home, so I judged it by smell. When standing next to it, you can feel air blowing out of the top, and it has a fresh, clean smell.

Some well-known brands that have never made our cut include Alen, Bissell, IQAir, Rabbit Air, and TruSens, generally based on their elevated up-front and running costs relative to those of our picks. Manufacturers typically base their room-size recommendations (and CADR ratings) on tests with the machines set on high. But high is usually too loud when you’re watching TV or sleeping. Purifiers rated for larger spaces can operate on lower, quieter speeds.

As of late 2022, the issue seems to be resolved, based on recent customer reviews. Our first test unit ran for two years straight and was performing like new when it was discontinued for a newer version. The second one ran for four years straight, and it too was still working flawlessly when it was replaced honeywell humidifier (again due to design updates). That third model ran at our office for over two years straight while it was closed for the pandemic, during which time the office endured a small flood. That experience has helped me gather objective data on their long-term purifying performance and any mechanical degradation.

In these tests, the purifiers handled normal ambient air after we raised the smoke levels at the outset. If you need to purify the air in a space of 500 square feet or so, we recommend the Blueair Blue Pure 211i Max. Smoke particles are right in the 0.3-micron size range—the hardest size to capture—that’s honeywell humidifier used as the HEPA test standard. If a purifier does well on smoke, it will do even better on larger particles like dust and pollen, and—somewhat paradoxically—on smaller particles like bacteria and viruses. Once particulate matter settles on floors or other surfaces, an air purifier won’t lift it up.