ELEGOOMars Mate Air Purifier with Activated Carbon Filter for Saturn 4/4/3 Ultra Mars 4/5 Ultra and LCD 3D Printers - Large Size 210mmx247mmx410mm

This really is a must have if your resin printer doesn't have built in air purification, they are well worth the price.I use these on my Anycubic Photon Mono X and they eliminate 99% of smell from resin printing. They are so quiet that unless I put my ear right up to them I can't tell they are on and last 2 days of printing without recharging.My printer is in a small spare room and since using these for the last week there is no resin smell anywhere in the house, they are that good. I just put them in the back corners of the enclosure and leave them to it.A big bonus with buying this one is that they have an extra set of filters which others don't seem to include for the same price so extra points for that too.

Takes a while to charge but they work SO well!Door closed and in a room with no ventilation it was stinking the place out. Put these going and the smell was do slight I cant be sure it wasn't my imagination hahaHighly recommend

A few bullet points rather than a full review as there isn't much to say that will make it interesting.You only get one USB lead to charge 2 devices. Everyone probably has dozens of spares so it's unlikely to be an issue.They charge very slowly. Didn't time it specifically but be prepared to wait several hours.There are 4 carbon cubes in the box so one and a spare each. I can't see any replacements for at sale so this will limit longevity. That's really disappointing.The first time I used 2 in my printer I was pleasantly surprised that they did manage to significantly reduce the odour of my standard easy print resin. Unfortunately that didn't last, by the 3rd print I can't seem to think that the smell is as bad as it was without using them.How much filtering is actually happening is going to be debatable. Maybe your mileage will vary.

I was a little sceptical but one of these little purifiers under the cover of the printer really does completely remove the smell while printing. I only use water washable resin so I haven't tested it with normal resin. For my use I'm very pleased.

The phrase "asthmatic ant" comes to mind when I think of these devices. Actually the ant would win in a spirometer contest. I haven't noticed any difference in the environment, it reeks of resin. To see if they are working you have to place the device to your ear and hope a butterfly is not flapping its wings. I would try and fir two of them in my Elegoo printer, but there is not enough room. I much prefer the USB powered vertical filters, they worked, I just need to mount a USB socket in my Mars5.

I was surprised at how effective they are, its reduced the smell of my resin drastically and combined with an open window is fantastic to provide ventilation. I Fit two in my printer, one just over the fan(I gave it little feet so it wasn't blocking the fan) and one on the other side. They run silently.No filter replacements. A really stupid move from elegoo especially since they market them on being replaceable, I wouldn't be surprised if they get into trouble over that. I'm just looking at getting some chunky activated aquarium charcoal and putting it in a mesh bag, should do much the same job.

These filters are exactly what I was looking. After using both these in my mars pro 2 the smell of resin was almost stopped completely.Normally I can smell my printer working hard from downstairs in my house even if I have the window open. Put these 2 in thr printer and the smell is almost completely gone and now no more smell around the house. Worth the buy

Fantastic Product very very quiet you really don't hear them unless you put near your ear.Work really well can't fault them.Except you get 2 sets of Carbon to remove the bad smells and purify. Yet the company then make none to buy so you have to hunt around, haven't found any yet. Guess I will have to buy a big block of carbon and cut up. Thatsthe only bad thing .