AtomStack D4 Air Purifier Replacement Filter

I use these filters with my 120w laser and have very little smell bleeding thru.

Solid filter stack - have been running them for a while and no major issues. As many have pointed out, the prefilter does get dirty quickly without independent replacements available. However I have found that they are reasonably cleanable for continued use while the main stack has life left. Would be nice to know the actual filtration ratings, but either way you have to have good ventilation after filtering so not the end of the world.

Very good, working nicely