Dusty basement, extract air or draw air in?

I am doing dusty work in a basement.

My first instinct is to fit an extractor fan but I remember reading something about it being better to bring air in rather than draw air out. Or maybe both?

Any opinions?

Reply to
R D S
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R D S wrote on 19/05/2008 :

Drawing air in will pressurise the basement and push the dust out into other rooms. Extracting will draw air in from other locations thus ensuring they don't become dusty.

Reply to
Harry Bloomfield

If you blow air in the dust will leak out all the gaps and leave dust there. If you extract the air you should draw air in through the cracks and contain the dust except where it goes through the extractor. Don't forget a good mask.

Reply to
dennis

This is what I thought.

Can anyone recommend a good extractor?

Cheers.

Reply to
R D S

16" desk fan, some plywood and a suitable door/window.
Reply to
dennis

After fitting a new ceiling in my kitchen and having to sand the taped joints I used my vacuum cleaner (Earlex) to negatively pressurise the room to keep dust out the rest of the house. It worked well.

A taped a cloth to the back door opening, had vacuum outside on a switched extension lead, vacuum pipe inside taped under cloth. After about 30s after turning the vacuum on you could see the cloth being pulled in, confirming the pressure was less in the kitchen. Worked really well.

When I lifted the floor tile (SDS breaker) the cloth idea didn't last long as I need access via the door to take out rubble, so I placed the vacuum cleaner just blowing out the door way. It generated enough flow to clear the dust in the kitchen quite well, but made the outside very dusty.

Reply to
Ian_m

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