[Lammarite]

Originally Posted by Sleuth

......... I would say the embarrassment has begun.

I am doing quite a bit of on the ground, behind the scenes stuff for the equestrian test events, a dry run for next year, and believe me, it has definitely begun!

[KnowItAll]

A good amount of the pollution is particulate and volatile organics... so yes, masks do help.

P100/P99 masks could eliminate atleast the particulate elements of the pollution...

Here's one .. took me about three or four searches in google.

http://www.respro.com/popup_techno.php

[rebekah]

yes, but those only work effectively, if fitted properly; when I started every job I have had in a hospital, they did a fit test to make sure you have no leaks. also, from what i recall, after about 15 minutes the humidity from your breath reduces effectiveness as well, but I will have to look that up, as it's only a vague memory.

edit: i guess according to the WHO they are good for 6-8 hours of use as long as you don't touch them or they aren't saturated.
http://www.wpro.who.int/sars/docs/ma...healthcare.asp

[Sleuth]

Originally Posted by Lammarite

I am doing quite a bit of on the ground, behind the scenes stuff for the equestrian test events, a dry run for next year, and believe me, it has definitely begun!

They going to run those tests in the weather?

[Lammarite]

Not if there is a T8 up, otherwise we haven't been told alternatively.

[MrMoo]

Originally Posted by KnowItAll

I heard deadlines of December being thrown around while in Beijing for shutting down factories etc ....

Pearl TV said as early as next week to start banning cars in Beijing. That will be impressive on one side, and annoying if you live there.

[jgl]

Originally Posted by rebekah

yes, but those only work effectively, if fitted properly; when I started every job I have had in a hospital, they did a fit test to make sure you have no leaks. also, from what i recall, after about 15 minutes the humidity from your breath reduces effectiveness as well, but I will have to look that up, as it's only a vague memory.

edit: i guess according to the WHO they are good for 6-8 hours of use as long as you don't touch them or they aren't saturated.
http://www.wpro.who.int/sars/docs/ma...healthcare.asp

I occasionally use Respo masks. Achieving a good seal is very easy- you can immediately tell when airflow comes in from poor seal.

They are not adversely affected by humidity over short periods (e.g. an hour) of time.