|
high deniers tend to be restrictive, but copper and silver threads.
Furnace filters are low suction differential, typically on the order of < 1" mercury, about the same as the 3m stuff, but once again merv7+ is smaller particles. Want good filter? 3M vinyl half mask with organic compound filters (white?) The vinyl mask conform seals at body temps
Ps don't piss off the osha inspector.
__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
|