According to what I just heard on TV you need a rating of '95' or better and should have something with a moisture valve for prolonged wear. The report said stores, especially drug stores, in the Portland area should be re-stocked today with more masks as they're NOT in short supply at the moment.
Do you still want me to get you some down here? I won't be going into Eugene until tomorrow. If you do want me to get some, how many do you need?
Mj