In OSHA-speak, a dust mask is often referred to as the eloquently named “filtering facepiece respirators” and the most common type you encounter is the N 95, as described at the CDC site.

TUPELO, Miss. — Federal investigators found ricin on a dust mask discarded by the man suspected of sending ricin-laced letters to President Obama and other public officials, according to an FBI ...

The APF indicates the amount that a respirator can be expected to reduce contaminant concentration. Disposable dust masks have the same APF as for half-mask air-purifying respirators, APF 10.

Masks may not completely stop drywall dust, but that doesn't mean they aren't effective against COVID-19.

Billie Eilish, Ariana Grande, Pharrell Williams and Pete Davidson have been spotted wearing them. Virgil Abloh’s Off-White label has its own line of face masks.

:: Dust masks and other disposable face masks all look similar, but levels of protection against particles that can pass through vary. If it says FFP1 then it’s a basic kind of dust mask.

Quantitative fit testing is also appropriate for dust masks. Training: All of the same training requirements apply. OSHA at 1910.134 (k) specifies the training content and frequency.