Your air purifier will alert you to a dirty filter by flashing its filter change indicator light. You’ll also want to make sure nothing is blocking the grilles either in or out of the device. Nothing should be resting on top of the outflow, and nothing should block the intake grille. Lastly, if the device is on Turbo or Auto mode, it may run the air purifier at a higher fan speed which is louder. First, a pre-filter takes care of typical household odors and VOCs (volatile organic compounds aka gases emitted from certain products).
ENERGY STAR Air Purifiers are capable of saving you almost 27% more energy (% varies on use) when compared to standard air cleaners. In a space that’s about 200 square feet or less, the Clorox Medium Room is a solid, inexpensive purifier with liveability features we usually only see on more expensive purifiers. It excelled at removing airborne particles in our testing. Smaller purifiers tend to be less energy-efficient, but the Clorox is an exception, with lower long-term running costs than is typical for this size. A display shutoff and child lock on the controls make it easier to sleep near and suitable for nurseries and playrooms.
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. On that honeywell humidifier setting, the Air Pro emitted an earsplitting 71 decibels, measured from a distance of 6 feet. That’s by far the loudest of any purifier we’ve tested, and it would be absolutely unlivable in real-world use.
With the purifier set on medium over the next two hours, the particulate load remained stable, varying no more than 0.1%. In the first hour on high, the Airmega 400 also reduced the particulate concentration by 99.9%, and thereafter the particulate load varied by no more than 0.2% on medium. In these tests, the purifiers handled normal ambient air after we raised the smoke levels at the outset.
A slightly pricier version of it is Alexa-enabled for remote or voice operation. Despite the name, this is strictly a small-room purifier, and in larger spaces, it doesn’t keep pace with our other picks. Oscillating air cleaner removes up to 99.9% up of all microscopic particles 0.3 microns and smaller from the air. Permanent ifD filter may be easily removed and cleaned, ensuring an extra-long, effective-use life. Odor-absorbing pre-filter helps reduce certain household VOCs and airborne gases.
In reality, Honeywell air purifiers utilize very little energy. Most use less power than a traditional incandescent light bulb. Remember, the fan motor is the only actual moving component or powered part of an air purifier. Anyone that suffers from allergy and asthma symptoms would benefit from using a Honeywell air purifier in their home. Air purifiers guard and protect you and your family against harmful, unseen airborne allergens.
Based on our years of real-world testing, we know that four ACH ensures rapid and nearly complete cleaning of highly polluted air. The Blue Pure 211i Max aced our tests, and on top of its powerful performance, it stands out for its energy efficiency, quiet operation, user-friendly features, and good looks. With quiet operation, good color options, and performance matching our other picks, this is a great choice, although the cost of filter replacements can run relatively high. Want to learn more about air purifiers and how to select the right air purifier for you needs?
One version adds Alexa compatibility for remote control and monitoring, although this feature bumps the price up by a bit. In 2017, we created wildfire conditions in our Los Angeles office and tested several purifiers. Using bunches of incense sticks, we created a thick haze of smoke in the room—which was four times larger than what the Coway is designed to be used in.