A year late, but the 3M N95 masks are finally available to buy at a reasonable price again. Box of 20 for $26.
3M 8210 N95 Industrial Respirator S-5688 - Uline
Lightweight, comfortable protection against dust, dirt and oil-free air. Nose clip for secure custom fit. Foam strip reduces eyewear fogging. Meets NIOSH N95 standards.ULINE offers over 37,500 boxes, plastic poly bags, mailing tubes, warehouse supplies and bubble wrap for your storage...
www.uline.ca