Does the Molekule Air Purifier Live Up to the Hype? - ConsumerReports.org

Does the Molekule Air Purifier Live Up to the Hype? - ConsumerReports.org


Does the Molekule Air Purifier Live Up to the Hype? - ConsumerReports.org

Posted: 09 Dec 2019 12:00 AM PST

The Molekule Air gets a Fair rating for smoke and dust removal at high speed and a Poor—the lowest score possible—at low speed. It is the third-lowest-scoring air purifier of the 48 we tested. The manufacturer says the Molekule Air is sized for rooms up to 600 square feet, but its performance in our tests ranks it among compact models that are designed for small rooms. Based on our lab's calculated rate at which it can process the air, the Molekule Air wouldn't be able to handle any room larger than 100 square feet.

We shared our methodology and findings with Rao, and she took issue with our testing.

"It's a very limited assessment of Molekule because instantaneous removal of particles is not the full picture of what air purification looks like," Rao says. "And while we may be destroying at a slower rate, we're still doing something much more complicated, which is truly purifying the air at the nanoscale level and making it safer."

But if the Molekule Air isn't pulling enough air into the machine in the first place, it may struggle to clean the air at any scale. 

"Even if the PECO filter works and it purifies the air of microscopic particles, it's still not effectively catching the large particles, which are also irritants," Dickerson says.

In addition to the Molekule Air's poor performance in our testing for particle reduction, there's the price to consider. The Molekule Air costs $800, with an annual cost of $130 for filter replacements, plus an additional $50 a year for energy use, based on our calculations. (The model is not Energy Star certified, unlike the majority of air purifiers we test.)

It's also not very quiet, garnering a Fair score for noise on the high-speed setting and a Good score on the low-speed setting.

Our verdict? Pass on the Molekule Air and opt for one of CR's recommended air purifiers.

Here are three models, listed in alphabetical order, that perform well in our particle removal tests and cost hundreds less.

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