Respiratory Protection

EN 149 rates disposable filtering half masks by the percentage of test aerosol they block and the maximum inward leakage allowed: FFP1 (basic, at least 80% filtration, for low-toxicity dust like general construction debris), FFP2 (at least 94% filtration, for finer dust and some fume, roughly what's commonly known elsewhere as an N95-class mask), and FFP3 (at least 99% filtration, for the finest and more hazardous particulates). The class needed depends on the actual airborne hazard, not a default assumption that any dust mask is interchangeable with any other.

NLS also sources particle filters to EN 143, used on reusable half-mask or full-face respirators rather than the disposable FFP-class masks, following the same P1/P2/P3 classification logic for particulate filtration. Reusable respirators with replaceable filters make more sense for daily, ongoing exposure, where a disposable mask would otherwise need constant replacement, while disposable FFP masks suit intermittent or shorter-duration exposure tasks.

On Saudi projects, concrete cutting and grinding dust typically needs FFP2 or FFP3 depending on silica content and exposure duration, general construction site dust needs FFP1 for lower-hazard tasks, and facility maintenance work involving nuisance dust or specific particulate exposure needs a class matched to the actual hazard assessment, since an under-rated mask gives a false sense of protection.

NLS quotes respiratory protection against the filtration class needed (FFP1/FFP2/FFP3 or P1/P2/P3 for reusable filters), disposable versus reusable respirator preference, valve or non-valve configuration, and quantity, and returns a priced quote in USD. Standard FFP2 disposable masks in bulk typically source fastest; reusable respirators with specific filter cartridges carry a longer, manufacturer-confirmed lead time.