Author Topic: Has anybody got a way of measuring humidity  (Read 1337 times)

Jon

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Has anybody got a way of measuring humidity
« on: February 25, 2016, 03:43:40 PM »
Thought I'd ask here since there are a varied (and useless) bunch of talents assembled.  ;D

I need to measure the humidity of my office. I'm reasonably convinced that the air-con is drying the air to such an extent that it's causing Sick Building Syndrome, and giving a high sickness rate to the staff as well as messing with my sinuses.

To give an idea of how dry it is, I hung my waterproof jacket up after a soaking wet ride in and six hours later it was absolutely bone dry. Drier than I can get it at home other than on a radiator. The dryness also shrinks my helmet straps by the end of a shift - again totally dried out -and more worryingly gives me throat and nose problems. Coughs and sniffles are endemic among colleagues.

So, any suggestions?
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Pilau

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Re: Has anybody got a way of measuring humidity
« Reply #1 on: February 25, 2016, 06:26:32 PM »
I have some know on this. Talk later :)

Pace Ian

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Re: Has anybody got a way of measuring humidity
« Reply #2 on: February 25, 2016, 10:16:18 PM »
Buy a hygrometer, www.ebay.co.uk/ulk/itm/131407397888
We use one similar to check levels in the unit we store cars in.

Ideal humidity in the home is 40-50%
« Last Edit: February 25, 2016, 10:23:31 PM by Pace Ian »
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Pilau

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Re: Has anybody got a way of measuring humidity
« Reply #3 on: February 26, 2016, 12:09:21 AM »
That looks pretty similar to the one I was telling you about Jon.

Ian, FYI we checked one of these desktop meters against an expensive professional device and it was pretty damned accurate. That's not to say they all will be, but if you think the readings make sense then it's probably pretty good. ;)

Ferrals

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Re: Has anybody got a way of measuring humidity
« Reply #4 on: February 26, 2016, 07:05:42 AM »
40-50% seems low? Our house is about 80% - but then we have lots of condensation mould

Jon

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Re: Has anybody got a way of measuring humidity
« Reply #5 on: February 26, 2016, 08:38:11 AM »
Ha, I reckon that my house is 99% - again judging by mould - and work is about 1%!

Thanks for the help, I'll be getting a hygrometer.
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Pilau

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Re: Has anybody got a way of measuring humidity
« Reply #6 on: February 26, 2016, 08:56:06 PM »
Generally speaking, a house will be affected by the humidity levels outside too. An air conditioned or climate controlled or comfort cooled (or whatever you call it) building will be (deliberately) more sealed off from the outside world. I seem to remember the upper figure for humidity, after which, health problems can kick in, is surprisingly low. Don't quote me but I think it's around 50-60% but that was a figure I saw for office spaces. I guess for houses it would be a bit higher, I think health concerns are different in an air con office to a home.

Pilau

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Re: Has anybody got a way of measuring humidity
« Reply #7 on: February 26, 2016, 09:09:42 PM »
Check out the abstract* on this paper http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1474709/

*which means I couldn't be bothered to read the whole paper!  ;)

Jon

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Re: Has anybody got a way of measuring humidity
« Reply #8 on: March 24, 2016, 08:36:16 AM »
I thought there might be some interest in my findings..

Work humidity this week, since I received the hygrometer, has been 22-24%.  :o. With a temperature of 24-25c. With no exaggeration, I can say it's like working in the Atacama Desert. No wonder that I keep getting sinusitis.

The facilities dept has been informed.
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Pilau

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Re: Has anybody got a way of measuring humidity
« Reply #9 on: March 24, 2016, 03:39:06 PM »
 :o Yeah I'd say that was pretty extreme! ;)

Dom

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Re: Has anybody got a way of measuring humidity
« Reply #10 on: March 26, 2016, 04:02:25 PM »
Work humidity this week, since I received the hygrometer, has been 22-24%.

Out of interest, how does that compare with humidity levels in other buildings (eg your house), as measured with the same hygrometer?

It seems very very low on the face of it!
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Re: Has anybody got a way of measuring humidity
« Reply #11 on: March 26, 2016, 10:29:49 PM »
Domestic humidity levels are generally much higher than office spaces, all that cooking and washing (especially if you use gas/ gas fire). - stating the obvious I guess!

From the work I did in computer room design a few years ago - If the RH is to low, you'll get static problems (not so much of an issue in more modern facilities where printing doesn't really happen now in the server room) - at 1% are you zapping everyone in the office!? Everyone's hair must be on end!

Jon

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Re: Has anybody got a way of measuring humidity
« Reply #12 on: March 27, 2016, 09:53:38 AM »
Work humidity this week, since I received the hygrometer, has been 22-24%.

Out of interest, how does that compare with humidity levels in other buildings (eg your house), as measured with the same hygrometer?

It seems very very low on the face of it!

About 65-70% in the living room, a bit more in the kitchen. F's office is about 55% with her air-con running.
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Pilau

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Re: Has anybody got a way of measuring humidity
« Reply #13 on: March 27, 2016, 07:46:48 PM »
Just for very vague comparison. Our office registers 40-45% accurately measured. You mentioned your sweaty helmet dries to a crisp during the day. Mine is still damp at the end of the day. My solution - nip to the bog every half hour and stuff wet toilet paper down my y fronts  :o

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Re: Has anybody got a way of measuring humidity
« Reply #14 on: March 27, 2016, 07:47:40 PM »
Lol
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