Chamberland filter .. Archived Message Posted by Shyaku on May 11, 2020, 5:50 pm, in reply to "Its a very reasonable question, because a virus was originally defined as a 'filtrable agent'" https://en.m.wikipedia.org/wiki/Dmitri_Ivanovsky#Life Message Thread: Serious question about masks - redadare May 11, 2020, 3:41 am Re: Serious question about masks - Ken Waldron May 11, 2020, 4:12 am Why dont you know this Red?? - Adamski May 11, 2020, 5:06 am I ain't got a cough NM - redadare May 11, 2020, 5:29 am Re: I ain't got a cough NM - Adamski May 11, 2020, 5:47 am uncalled for - please refrain from abuse like this - cheers. nm - dan May 11, 2020, 6:46 am THe point was made by MoA ages back - - David Macilwain May 11, 2020, 8:57 am Is this an accurate representation? - flash May 11, 2020, 11:13 am Good question redadare - walter May 11, 2020, 12:08 pm Sorry accidentally let slip my mask patent number :) :) - walter May 11, 2020, 12:11 pm A good illustration Flash, - David Macilwain May 11, 2020, 2:06 pm It comes from this site David.. - flash May 11, 2020, 3:44 pm No. - Shyaku May 11, 2020, 5:46 pm Its a very reasonable question, because a virus was originally defined as a 'filtrable agent' - Shyaku May 11, 2020, 5:44 pm Chamberland filter .. - Shyaku May 11, 2020, 5:50 pm   Searching