--- In [EMAIL PROTECTED], [EMAIL PROTECTED] wrote: > I was at a meeting last night where one delegate claimed that small > particulates 2.5 m or smaller pass through glass. > ie. If you live by a main road, closing your windows does not keep > the stuff out of your house. > I find that hard to believe. > Any opinions? > James
Opinions are like ......Everyone has one! And whoever made the statement was simply expressing his opinion, NOT facts. Many people do that when they don't have actual facts to support their argument, and are forced to 'invent' a few to help them along. 2.5 micron-sized particle will NOT go through glass. Many vacuum cleaner bags have a 2.5 micron filter in them to reduce dust recirculation in your house. Air will pass through, while dust particles will not! If the person mentioned above has 2.5 micron particles coming through his glass, maybe he should put a vacuum cleaner bag over it, to filter it finer? If he has that much airflow through his glass windows he has bigger problems than air quality. Just my opinion, Motie ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4. No Minimums. FREE Money 2002. http://us.click.yahoo.com/BgmYkB/VovDAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
