Alleging a fraudulent scheme to drive up costs and damages in dust-mask litigation, 3M Co. obtained court orders, upheld on appeal, to depose a well-known Houston products liability law firm.

Use a jigsaw or oscillating saw with a fine-tooth blade, and wear proper safety equipment, including eye protection and a dust mask. After the cut, smooth the inside edge with a sharp utility knife.

KN95 and N95 masks are able to a filter up to 95% of particulates that are 0.3 microns or larger from the air, helping to screen the current unhealthy air quality, experts said.

Now, during the winter COVID-19 spike, we think it is time for more people to wear masks again in crowded public places, even though there is generally no requirement to do so.