How often do Molekule filters need to be replaced?

Molekule PECO-filters are designed to destroy pollutants and convert them into natural components of the air. The PECO catalyst is coated onto the PECO-filter and activated by light inside the device. 

While PECO can destroy VOCs, viruses, mold spores, ozone, and other pollutants, there are some pollutants our devices are designed to capture instead of destroy. Every Molekule device has a pre-filter in front of the PECO-filter to capture large particles like fibers and hair that might obscure the light that activates the catalyst. 

Also, pollutants like particles from worn brake pads or from the sand and rocks in dust storms contain metals and ceramics that cannot be oxidized into atmospheric gases. To remove these particles from the air, the filter captures them and holds them tight. Over time, these particles can build up and obscure the light that activates the catalyst which can decrease its ability to destroy pollutants. This is why it’s important to change your Molekule filters as suggested.

Different filters for different devices

Different Molekule models use different filters to fit with their size and particular characteristics, but all PECO filters need changing once every six months.


Molekule Air

Our debut product has two filters: a pre-filter in the base and a PECO-filter in the body. The pre-filter should be changed out every three months so it keeps large fibers off the PECO-filter. It’s a good idea to check your pre-filter after two months just to be sure it hasn’t gotten full. If it’s so full that you can’t see the pleats it may need to be replaced ahead of time. 

This filter should be replaced


Molekule Air Mini and Air Mini+

The product we designed for the bedroom and smaller spaces has a single integrated filter with a pre-filter and PECO-filter layer. The size of the pre-filter layer on Air Mini is larger than the size of the separate pre-filter in Molekule Air, so the integrated filter can be changed every six months. Like with the air, it might be a good idea to check the filter before replacement to see if it’s full. If so, it may need replacement sooner than expected.


Molekule Air Pro

Our latest product is the Molekule Air Pro. The design of Air Pro’s filters is much like Mini’s with a single integrated filter that has a pre-filter first to protect the PECO-filter on the inside. Air Pro’s filter is good for six months, after which it should be replaced. Like the other filters, it’s a good idea to check that six months is the ideal time for your particular pollutant situation.


When you do replace your filters, be sure to get genuine Molekule filters for the best experience. Our filters are available via subscription on our website and will show up at your door right on time with no hassle. They are also available individually on Amazon, at Best Buy, and of course on our site.

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