Mini Air Purifier

Pretty small units but they work well. Batteries often last a couple days. I turn them off at night when the printing is done but they otherwise run the whole day. They do help keep the smell down so id say it’s a good value.

When I print ABS, (my printer doesnt have an internal filter system) the entire room is filled with a Nauseating smell even with the windows open. These help... a lot. They last quite some time as well so you can leave them running in your printer overnight. I think I had them running for 8 hours or so, so they last a fairly long time. One does just well enough to reduce the smell, but using 2 works even better. they both fit inside my Flashforge Adventurer 5M with and enclosure, just make sure theyre against the wall and the air intake is facing the print bed. Also theyre super quiet, like I have to hold it up to my ear to hear the air blowing into my ear to even tell its on. So theres 0 chance youll hear them over your printer unless youre a bat and your printer is off. For $30 (i bought them on sale for 18) its well worth it to not inhale toxic abs fumes.

I exclusively use water washable resin. While it has low oder, it still has a strong smell when printing. These things work wonders in taking care of that smell. I only have to use one, but assume if you use standard resin you'll want to use both. The filter is easy to replace, and replacements are reasonably priced. They have a pretty decent life span. 10kg+ worth of prints and they are still working. The only complaint I have, and why it is a 4 star is because of the battery life. They last about 6 to 7 hours, while a decent amount of time. But if you're running 36 hour printing marathons, i.e. 40k large scale warmachines, large busts, or multiple plates of anything, these can go out many times on you. While I can rotate them out, standard resin users will be faced with having to charge them. And there is no warning they have gone out other then the resin smell. A little trick I learned, they will run while plugged in. Running the cable out of the printer will cause oder to leak, so I've gone to using cellphone backup batteries. The one I have was given to me, but it adds another 7 hours or so to the time, and can charge inbetween charging the units. Just get a really short and stubby USB cable, you don't want it falling into the vat, like me.

I bought these air purifiers to cut down on the VOCs and the general aroma of ASA and ABS printing. I don't have a resin printer but these work perfectly in the enclosure of my ex plus two printer from qidi. I duct tape them to the inside of the door and they fit perfectly. The smell is almost completely gone except if you're within about 1 ft of the printer. This is completely acceptable for a filter this small. Plus it's a two pack for 20 bucks so who could possibly say no to that? They are 18x18 by approximately 45 mm rectangular prisms.

It feels like these can run forever. They noticeably reduce the smell of my 3d printer. They are tiny, and I can easily fit both in my printer. You can barely hear these run.

For their size, I am impressed. They have lasted 8 to 10 hours each. I have no issues with battery life. I can tell the difference when using them inside of my enclosure. Depending on the smell of the filament, I will use two at once. Low noise. I can barely hear them. I chose these because I did not have a suitable place to exhaust using a fan and hose.

These are for reducing smell and not filtering the air of contaminants...

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