Posted by a reviewer on Amazon

In general the prefilter collects the large particles

Posted by a reviewer on Amazon

I replace the charcoal prefilter every 2 weeks to a month depending on how dirty it looks

Posted by a reviewer on Amazon

The veva prefilters are thicker than the one that comes with the hepa filter replacement but fit fine and so collect lots of the crap out of the air

Posted by a reviewer on Amazon

You can’t see thru it like the original one

Posted by a reviewer on Amazon

No wonder why it never worked to reduce pet odor

Posted by a reviewer on Amazon

Replacement filter is hard to find because this model has already been discontinued

Posted by a reviewer on Amazon

They are much thicker and sturdier than both the original oem ones as well as another brand that came with some filters i also recently purchased those were so thin that they ripped easily and fell apart after trying to rinse them once

Posted by a reviewer on Amazon

Don’t know how this will effect the filtering