Guides

Complete guide to respirator sizing for half-face, full-face, and disposable N95 respirators. Brand size charts for 3M, Moldex, Honeywell North, MSA, and GVS, plus seal check and OSHA fit test protocols.

Respiratory protection covers every decision between a worker and a harmful airborne exposure: selecting the right respirator, applying OSHA's APF table, completing fit testing, choosing the right cartridge, and building a compliant written program. This guide covers all of it — from NIOSH 42 CFR Part 84 to OSHA 1910.134.

Choosing between the Moldex 7000 Series and the 3M 6000 Series half-mask respirators is not simply a question of which unit costs less at the point of purchase. A reusable half-mask is the entry point into a cartridge platform. Every cartridge, filter, and replacement part you buy for the next…

Best Respirator for Silica Dust 2026: A NIOSH-approved P100 elastomeric half-face or full-face respirator. P100 filters capture 99.97% of airborne particles including respirable crystalline silica - the particle size responsible for silicosis.

Best Respirator for Paint Fumes 2026: The best respirator for paint fumes is a NIOSH-approved elastomeric half-face or full-face respirator fitted with an OV/P100 combination cartridge.