Carbon filter rebuild

Good to hear. Hope it keeps on trucking for you.

Thank you all for helping make this work right.


Just had an unsolicited 2nd opinion that it’s scrubbing lol. Exhaust dumps into 6000+ cubic foot of air volume plus connected rooms and it’s got it fresh. I’m fucking stoked.




Another lesson learned.

The new carbon has some dust. Maybe all new does? Less than I expected and only really noticed when I attached the fan. Blasted some out for a few minutes. Can’t be good for the fan. Got me thinking.

Dump the new carbon into a nylon stocking and hit it with the air compressor before packing.

Vacuum. Which I meant to and didn’t. For the whole packing process next time. It’ll help giggle too.

Run with an old scrapped fan for a few initial hours.

We gonna get this right and tight.

When the time comes to replace my filter I'll look into sourcing some quality carbon, thanks for sharing.

hang onto that old bag of carbon. It is of a way better quality than what you replaced it with. You can cook the old carbon off in an oven to reactivate it

The new scrubber is kickin butt. My old one has clearly past expiration and the new home job is cleaning it all. Turned it off a few times and oh yea, it’s working. I haven’t hung it to save moving stuff.

robbievapez said:

hang onto that old bag of carbon. It is of a way better quality than what you replaced it with. You can cook the old carbon off in an oven to reactivate it

Click to expand...

I’ve heard that you’d need a kiln to get the temps to clear it though no? And you could be right I have no way to test the quality other than my air is clear. How could you even tell? New stuff was dusty maybe but I fixed that with the vacuum too. Air smells just like it should.

Still would hesitate to mess with this if stealth is critical but I’m happy.

It looks cool, I've never seen it done before, but I always knew it was possible

I plan to do the Vivosun I have to see if it’s any different. I just have had no time.

I also will try to update when I get them hung and tested as exhaust. And then how long they last.

Finally got to the Vivosun. I’m not impressed with how it’s put together though it’ll work for the veg space.

Same size filter with 1/2 pound or less carbon. I had a lot more trouble refilling it and don’t think I was able to get near the same amount in that was in to begin with.

I would definitely buy phresh again considering the rebuild and most likely be able to rebuild it forever.
Would love to see companies like Phresh to offer a rebuild package. Carbon, inner bag and new prefilter. Sold.
Anyway pics of Vivosun here.

Taking that plastic off reveals glue making things a pain

Tape the inside down because it’s not attached

There is no bag. Instead the inner wall is wrapped separately than outer.

I was able to pack it decently but it was uneven which wasn’t an issue with the Phresh. It’ll work for my purpose but I plan to pick up a new phresh eventually because the Vivosun was way harder and a PitA basically. Would not use this rebuilt Vivosun in the flower room other than an extra scrubber.

M.O. said:

Finally got to the Vivosun. I’m not impressed with how it’s put together though it’ll work for the veg space.

Same size filter with 1/2 pound or less carbon. I had a lot more trouble refilling it and don’t think I was able to get near the same amount in that was in to begin with.

I would definitely buy phresh again considering the rebuild and most likely be able to rebuild it forever.
Would love to see companies like Phresh to offer a rebuild package. Carbon, inner bag and new prefilter. Sold.
Anyway pics of Vivosun here.
View attachment 5077263
Taking that plastic off reveals glue making things a pain
View attachment 5077264
Tape the inside down because it’s not attached
View attachment 5077266
There is no bag. Instead the inner wall is wrapped separately than outer.
View attachment 5077269
I was able to pack it decently but it was uneven which wasn’t an issue with the Phresh. It’ll work for my purpose but I plan to pick up a new phresh eventually because the Vivosun was way harder and a PitA basically. Would not use this rebuilt Vivosun in the flower room other than an extra scrubber.

Click to expand...

Are you still running these? How are they holding up?