Dust and temperature. How do you deal with dust in the server room?

Question

Server equipment

I have several tower cases that are not so actively pulling dust. But here is a rack, just like a vacuum cleaner.
But here an explanation is needed, in the building the ceilings are four meters, the walls are 2.5, there is another one and a half meters of free space. The workers do not complain about the noise, but the constant trampling in the neighboring offices…
Of course, I understand that to close all the holes in the server room, clean it up and there will be less dust.
And so there are two questions:

- How do you deal with dust?

- How do you cool? (perhaps someone will tell you air conditioners without the need to gouge holes for the outdoor module and share their impressions of work)

Answer 1

They removed all mechanical parts, treated dangerous places with sealant and drowned the servers in a container with used engine oil.
Absolutely quiet, the heat escapes perfectly, there is no dust. There is a little smell of oil and a little hemorrhoids when replacing components (pull out, wash, dry, reassemble, sealant, drown).

Answer 2

I will add the following to the previous speakers: do not use the server room as a warehouse for paper / cartridges / other rubbish.

Answer 3

The basics of dust control:
- the room is as tight as possible
- there is one "official" hole through which the compressor introduces air into the room through filters.
The key point of this system is the pressure difference. The pressure in the room should be slightly higher than the current atmospheric pressure. Then the air will only come out of the remaining open slots of the room (dust will not penetrate through them), and the only hole through which air enters is reliably protected from dust by a filter.
Depending on the volume of the room, the necessary air for circulation is calculated. Of course, the entrance and potential exit holes (the door, most likely) should be in opposite parts of the room. It is easy to check the presence of a pressure difference if you put a burning match or lighter on the guaranteed target of the door (the lock hole, for example) and look at the direction of the flame deflection. From the door - we coped with the task)
This is my vision of the fight against dust)

Answer 4

Alas, but all this collapses with the entry of a person into the premises and / or the introduction of new equipment into the premises. But significantly reducing this factor will help to remove shoes and wipe all the boxes when making. And it’s better to bring the equipment into the room already opened and ready for installation.

Answer 5

What does it mean to close all holes? Roughly speaking, there should be one "hole" - the door. We fight dust and temperature with the help of a precision air conditioner, but it has external modules.

Answer 6

Sealed room + air conditioning.