Mask Fit Testing

Quantitative respirator fit testing provides a measured fit factor to verify mask seal for OSHA 29 CFR 1910.134 compliance. It is required for N95, half-face, and full-face respirators used in environments with airborne hazards like silica dust, lead, asbestos, and chemical vapors. Our rental fleet includes TSI PortaCount systems (8030, 8038, 8040, 8048) using CNC particle counting and OHD QuantiFit2 using Controlled Negative Pressure (CNP) technology, plus the OHD AeroFit for fast CNC-based testing in under 2 minutes. Every kit ships with probes, adapters, software, and consumables, and our team can help you choose the right system for your mask types and testing volume.

Category Child ~ Mask Fit Testing
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