In the world of air purifiers, there are many options to choose from. But which one is the most powerful? To answer this question, it's important to consider the size of the room, the type of filter used, and the CADR rating. The Molekule Air is a popular choice for air purification. In Auto mode, it reduces particles by 0.3 microns at 18.0% (ambient) and 26.4% (clean).
In Silent mode, it reduces particles by 6.5% (ambient) and 7.2% (clean). And in Dark plus Auto mode, with its primary PECO purification system turned off and its fan at the equivalent of a medium setting, it reduces them by 21.3% (ambient) and 18.0% (clean). It appears that the Molekule Air relies primarily on its physical prefilter, not its patented PECO mechanism, to remove particles. The Levoit LV-H134 is another powerful air filter that covers up to 710 feet with 312 CFM CADR.
It can generate some noise in the range of 18-45 dB. The Coway 1512 has a coverage area of 360 square meters and a CADR of 141 CFM. It can generate noise in the range of 20-54 dB. It also uses a HEPA filter with an activated carbon layer that is easy to replace as needed.
The Blueair Classic 605 is one of four air purifiers tested by Consumer Reports for an “Excellent” rating on both the highest and lowest speed settings. It uses Blueair's HepaSilent technology, which can filter 99.97 percent of particles down to 0.1 microns. In a 350-square-foot room, you can perform 5.3 air changes per hour (ACH) based on your CADR measurements, almost identical to the results of the Coway Mighty and slightly more than what Winix models can achieve. When choosing an air purifier, it's important to consider how much suction it has and how much noise it generates.
You'll also want to look for a purifier that uses a true high-efficiency particulate air (HEPA) filter. Some models even claim to help protect against the coronavirus COVID-19 by filtering airborne particles that carry the virus. However, keep in mind that if you're sitting next to a person who has COVID-19, an air purifier on the other side of the room is unlikely to adequately protect you. Additionally, a draft or an open door can bring unfiltered air into a room faster than the purifier can handle it. The Molekule Air is a great choice for those looking for an aesthetically pleasing air purifier that can handle large rooms with ease.
The Levoit LV-H134 is another powerful option that covers up to 710 feet with 312 CFM CADR and generates some noise in the range of 18-45 dB. The Coway 1512 has a coverage area of 360 square meters and a CADR of 141 CFM, while the Blueair Classic 605 uses Blueair's HepaSilent technology to filter 99.97 percent of particles down to 0.1 microns in a 350-square-foot room.