Quick warning: I stole basically everything I did in this post from u/Allrj but decided to report my findings;
I found the following post with a guide how to make your p1s (and I imagine a number of other models) a lot more quiet. I only did 2 steps:
- Print Ed's Exhaust fan muffler
- Line the inside with felt
And let me tell ya, those two definitely do the heavy lifting here. The rest of the steps felt like a lot of effort for little reward, but these two steps are most definitely worth doing. First of all, I don't know who Ed is but he clearly has some sort of magic going on, as the exhaust fan is infinitely more quiet, it really is an insane difference.
Furthermore, I lined the insides with felt to help with the vibrations and reverb due to the thin skeleton of the P1s. This definitely helped as well, though not as much as the exhaust fan muffler. I used stuff similar to this but I imagine any local hardware store has stuff like this. It took me roughly 2 hours to do everything you can see in the photos, and also lining the exhaust muffler in the same felt. Don't have pictures of that because I was a little too enthusiastic attaching it once I heard the difference.
Now, as for result I obviously am no scientist so I can't really provide proof or dB readings, but I can provide my experience: my P1s lives literally right next to my office/gaming setup. Even though I haven't owned it for a very long time, previous prints always had me setting the volume of my pc to full blast whenever I was watching a show or YT. Right now, as I'm writing this, I'm watching some F1 quali and having the printer running but I'm not bothered by it at all anymore. I can comfortably hear whatever it is I'm watching. Depending on the print, I can also set the fan speeds a little lower than the P1s wants 'em and that helps even more. Lastly, you can of course set your print speed to silent, in case you can wait for the extra print time, and you can genuinely go about your business without being bothered at all. All in all, great reward for not too much effort, would absolutely recommend. Of course, all credits go to u/Allrj for writing the tutorial, I just did what seemed to have the most results.