vaticinator
My case has an anti-dust filter (fine mesh) in front of the fan. In place of this filter I intend to insert a hepa filter and an additional cotton filter. In some cases, you will need to find a slightly different solution for placing filters. An additional fan will also be useful to increase the filtering surface and the amount of cool air flowing.
Technical details:
Temperatures inside the case with ordinary computer use (music from Youtube and surfing the internet) are virtually unchanged. At maximum load they jumped slightly (some 2-4 degrees). I think it's not a tragedy :)
The efficiency of the air purifier is noticeable. I ventilated the room until the measurement of dust on the outside aligned with the inside and I started measuring. For several days the air outside is quite clean for my city. The room has 70 m3.
| time from closing the windows. | PM 2.5 | PM 1.0 | PM 10 |
| 0 min | 53 | 42 | 63 |
| 10 min | 41 | 32 | 50 |
| 30 min | 32 | 26 | 39 |
| 1 hour | 24 | 20 | 32 |
| 2 hour | 19 | 16 | 24 |
| 3 hour and more (balance close to:) | 15 | 13 | 22 |
Costs
7$ (fan) + 10$ (HEPA filter) + 3$ (cotton filter) = 20$
There are few benefits.
1. I don't need additional equipment at home.
2. The motherboard and other components inside the case are not getting dirty.
3. If you want to purify the air also at night, you need to know that the computer's power consumption is higher than the air purifier. But can your air purifier be able to mine altcoins?
Greetings to Hackerspace: Wroclaw ;)
Mohamed Lanjri
AviPeltz
Turranx
You should repeat measurements without hepa filter fitted in case. That will give you some real comparison. I don't say that you filter doesn't work, but you will know how much of decrease is because of filter. Some of that decrease may be caused by your lungs or particulates settling on room surfaces.