Enviroklenz UV Model : Enviroklenz Regular Model:
Molekule Website:
We found that the Molecule, which has 3 power settings, ranged from 17 cfm on low power to 68 cfm on high while the Enviroklenz measured 24 cfm to 62 cfm. While it was very close the Molekule was on average a couple decibels quieter than the Enviroklenz.
So on low power they both were whisper quiet, basically the same as ambient noise in our studio, but the Enviroklenz was moving quite a bit more air with only a 2 decible cost on low.
The Molekule had slightly more airflow on high power but as we will see in the next test the higher cfm didn’t translate to faster filtration for the Molekule.
On high power The Enviroklenz numbers are a bit more impressive than it might first appear when you consider that its almost matching the Molekule in cfm despite having to pull the air though 56 square feet of HEPA filtration media which takes a pretty high powered fan to do.
But just by the numbers the Molekule looks like it processes air pretty quick, but as we found out that doesn’t mean it filters air very efficiently.
In our speed test where we release a 10 second burst of 5 micron fog particles in a chamber and measured how quickly they removed the fog, the Enviroklenz consistently beat the Molekule on all it settings. In fact it completely creamed the Molekule. The Molekule was 71 percent slower than the Enviroklenz on high power despite having a faster airflow. And In case your wondering how long the fog would stay in that chamber if no air purifier was running. I don’t know but I do know that after 10 minutes it remains basically unchanged, so more than enough time for our purposes.
We did a dry particle test was where we released a special kind of test dust with a filterless vacuum into a 3400 cubic foot room and measured the changes several times over the course of an hour with a particle counter.
Here I found that on high power the Enviroklenze had reduced the smallest particles in the room 72% in 45 minutes, using the first 15 minute measurement as the baseline. This is compared to the Molekule, which only reduced the particles 51% in the same time.
Next up was the so called real world test where I put the purifier upstairs in our home which is an open space with high ceilings and opens up on several rooms, its about 8000 cubic feet way larger than these air purifiers are rated for. I tested them in three different locations in the house several times in the course of an hour and once the next morning.
Here I found that after an hour the Enviroklenz had reduced the particles in the entire house about 56% and the Molekule about 47%, the next morning it was 85% to 79% respectively. So not as much of a difference but the Enviroklenz was still better.
I think at this point its safe to say that the Enviroklenz was better at particle filtration, but let move on to the Volatile Organic compound tests since that is where each company makes the most claims.
So for the first VOC test I poured 2 cups of ammonia into a bowl and set it inside the chamber. I measured the levels with something called Foobot which among other things measures VOC levels. I found that the Enviroklenz was clearing the air very quickly, in fact it reduced the levels almost 80% in 20 seconds, which is fast. The Molekule on the other hand did not seem to filter it much at all. In fact the levels just kept rising until after 3 minutes it was to 11k ppb and I just ended the test.
This is actually consistent with laboratory tests done comparing the enviroklenz and the Molekule as well as other air purifiers, where they came up with similar results.
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