AeroFit by OHD - Mask Fit Test System

Personal Monitoring Datalogging
Mask Fit Testing Manufacturer: OHD
AeroFit by OHD - Mask Fit Test System
Training
Available
AeroFit by OHD - Mask Fit Test System
AeroFit by OHD - Mask Fit Test System
Training
PortaCount 8048 vs. QuantiFit 2: Choosing the Right Fit Tester

The OHD AeroFit is a next-generation quantitative respirator fit tester using Condensation Nuclei Counting (CNC) technology to measure fit across all mask types including N95s, half-face, and full-face respirators. A touchscreen interface, onboard report generation, and guided automation make it one of the fastest and most intuitive fit testers available, delivering results in under 2 minutes per test. Compliant with OSHA 29 CFR 1910.134 requirements. Suited for healthcare, manufacturing, construction, and emergency services programs. All rentals come with 25 free N95 Push Probes, more are available upon request at an additional cost.

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Rental Rates
Daily
$310.00
Weekly
$805.00
Monthly
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AeroFit by OHD - Mask Fit Test System
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Technician verified and tested instrumentation before every rental
Expert support available by phone and email
Fast delivery and flexible rental terms
What is the OHD AeroFit used for?
It's a quantitative respirator fit test system using Condensation Nuclei Counting (CNC) technology. It tests full-face, half-face, N95, and N/R/P series filtering facepieces in under 2 minutes per test — designed for high-throughput fit testing events under OSHA 29 CFR 1910.134.
AeroFit vs. OHD QuantiFit2 — which should I choose?
The AeroFit uses CNC particle counting; the QuantiFit2 uses Controlled Negative Pressure. Both are OSHA-accepted quantitative methods. Choose AeroFit for fast CNC-based testing across a broad range of mask types; choose QuantiFit2 when CNP's independence from ambient particle counts is an advantage for your environment.
AeroFit vs. TSI PortaCount — what's the difference?
Both use CNC technology and are OSHA-accepted. AeroFit uses OHD's FitTrack software ecosystem and generates onboard reports. PortaCount uses TSI's FitPro software. Choose based on your existing software platform, team familiarity, and whether you need specific output formats for your recordkeeping workflow.
What's the biggest cause of failed fit tests during high-throughput events?
Poor donning technique — incorrect strap routing, facial hair interference, eyewear placement disrupting the seal, and rushing the initial adjustment. Pre-brief workers on correct donning before testing begins to reduce re-tests.
What should I confirm before scheduling a fit testing event?
How many workers will be tested, which respirator types and sizes will be used, and whether N95 probe supplies are needed. Throughput improves significantly when masks are pre-staged by size and workers arrive with facial hair requirements met.
What's included in the rental kit?
The AeroFit fit tester, power supply, sampling tubing, reagent-grade IPA, wick assembly and spares, probes and nuts, N95 probe tool, USB cable, particle generator and cable, hard rolling case, FitTrack software, calibration certificate, and printed manual.
What does it cost to rent the OHD AeroFit?
$310/day and $805/week. Pricing beyond two weeks is by quote. At under 2 minutes per test, the AeroFit supports high throughput — budget based on worker count and whether you need multiple simultaneous stations to hit your testing timeline.

Features & Capabilities

Calibration Certificate Available: ✓ Yes
Datalogging: ✓ Yes
Monitoring Scope: Personal Monitoring

Equipment Specifications

  • Testing Technology:Condensation Nuclei Counting (CNC)
  • Measurement Method:Compares particle concentration inside and outside the respirator
  • Fit Factor Calculation:Ratio of ambient particles to particles inside the respirator
  • Compliance:OSHA 29 CFR 1910.134, CSA Z94.4
  • Test Time:Less than 2 minutes per complete test
  • Compatible Respirators:Full-face, half-face, N95 and N, R, P series filtering facepieces
  • Power Requirements:100-240 VAC, 50/60 Hz, 0.5 A max
  • Battery Life:8 hours continuous operation
  • Display:High-resolution color touchscreen
  • Data Storage:Internal memory for 10,000+ test records
  • Connectivity:USB, Ethernet
  • Software:FitTrack™ Gold software for comprehensive record management

Kit Contents

OHD Aerofit w/ Red Storage Cap Installed, Wick Storage Container and Assembly, A/C Power Supply (Brick and Cable), (2) Spare Alcohol Bottles AND (1) Zero Filter (White or Blue), (1) Spare Alcohol Wick, Twin Tube Assembly with Metal Fittings, 3/16” and 1/4” Tube Adapters, USB A-B Cable, N95 Push Probe Assembly Tool, Container with (25) Push Probes / Nuts, Particle Generator Management Cable (Tested for functionality), USB Flash Drive with Manuals/Software/Guides

Manufacturer Resources

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