Quantitative Face Fit Testing Machines: A Comparative Guide

A man wearing a full-face respirator after using a quantitative face-fit testing machine.

Selecting the right quantitative face fit testing machines is essential for organisations that rely on tight-fitting respiratory protective equipment (RPE). With several leading systems available in the UK, each offering different capabilities, pricing, and usability, it can be challenging to identify which option provides the best value for your workforce. This article breaks down the main differences between the most widely used quantitative face fit testing machines, including Fire Safe International’s AccuFIT 9000 and AccuFIT 9000 PRO.

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Why Quantitative Face Fit Testing Matters?


Quantitative fit testing provides a numerical measurement of how adequately a respirator seals to the wearer’s face. Unlike qualitative testing, which depends on taste or smell, a quantitative fit test machine delivers objective results with a recorded Fit Factor, reducing reliance on subjective feedback.

This makes quantitative testing particularly valuable for:
  • Safety-critical roles
  • Organisations with strict auditing requirements
  • Large-scale or frequent respirator testing
  • Testing mask types that qualitative methods cannot assess
A high-quality quantitative fit testing machine, such as the ones we’ll look at below, helps you maintain compliance with HSE guidelines and supports a safer, more consistent fit-testing programme.

Comparison of Leading Quantitative Fit Testing Machines


Below is a snapshot of the four dominant systems on the UK market.

AccuFIT 9000


A reliable, cost-effective APC (ambient particle counting) system.

Highlights
  • Tests FFP3, half masks, full masks and reusable elastomeric masks
  • 7" touchscreen, simple workflow, user-friendly
  • Low ongoing costs
  • Optional cloud management
  • Can be battery-operated for true mobility
  • 3-year warranty
  • Approx. price: £7,300 + VAT
Typically considered by: Organisations focused on FFP3 and elastomeric RPE at the best entry price point.

AccuFIT 9000 PRO


A full-capability quantitative face fit testing machine with the widest mask compatibility.

Highlights

  • Tests FFP1, FFP2, FFP3, half masks, full masks, and all tight-fitting reusable masks
  • FFP1/FFP2/N95 particle classification
  • Modern interface and workflow
  • Optional cloud management
  • Can be battery-operated for true mobility
  • 3-year warranty
  • Approx. price: £10,800 + VAT
Typically considered by: Organisations needing full disposable mask coverage and strong long-term support.

TSI PortaCount 8048


The most established quantitative fit test machine platform globally.

Highlights

  • Tests FFP1–FFP3 and elastomeric masks
  • FitPro Ultra software and real-time FitCheck
  • Widely used in healthcare and industry
  • Approx. price: £10,000–£10,200 + VAT
Typically considered by: Organisations wanting the widest user community, extensive software features, and long-standing familiarity.

OHD QuantiFit2


A fast and highly portable CNP (Controlled Negative Pressure) system.

Highlights

  • Can test half masks, full masks and elastomeric masks
  • No alcohol wicks or particle generators
  • Battery-operated for true mobility
  • Requires adaptors for most disposable masks
  • Approx. price: £8,400 + VAT
Typically considered by: Mobile testing teams and high-throughput environments.

Aerofit


A CNC (Condensation Nuclei Counting) quantitative fit testing system.

Highlights

  • Tests FFP1, FFP2, FFP3, half masks, full masks and reusable elastomeric masks
  • Interactive touchscreen with guided test protocols
  • Integrated particle generation system
  • Battery-operated for true mobility
  • Approx. price: TBC
Typically considered by: Organisations requiring quantitative testing across both disposable and reusable respirators.

What These Differences Mean in Practice?


Choosing the right quantitative face fit testing machine isn’t only about features. It’s also about how each device performs in real-world testing environments. The following factors have the biggest impact on daily operation, productivity, and long-term value.

1. Mask Compatibility


AccuFIT 9000 PRO & PortaCount 8048: Both systems include particle classification that enables accurate testing of FFP1 and FFP2 masks; an essential function if you use a wide range of disposable respirators.
AccuFIT 9000 (standard): Supports FFP3 and reusable masks, suitable for many industrial, emergency service, and technical users.
QuantiFit2 (CNP): Excellent for elastomeric respirators, half masks and full masks, but cannot be used to test disposable respirators such as FFP1, FFP2 or FFP3.
At a glance…
  • For broad mask coverage, choose AccuFIT 9000 PRO or PortaCount 8048.
  • For reusable mask programmes, any system works.
  • For disposable-heavy (FFP) programmes, avoid CNP unless your workflow supports them.

2. Testing Speed & Throughput


Fit test duration will vary depending on the protocol followed, rather than the specific machine used. As a result, published test times should be considered indicative rather than definitive.

Some quantitative fit testing systems are designed to support efficient workflows, with features such as guided protocols and real-time feedback that may help streamline the testing process. Particle-counting systems, for example, can provide live feedback as part of a pre-test assessment, which will help identify poor fit ahead of a test, and so may help reduce the need for repeat tests.

In practice, overall throughput is influenced not only by test duration but also by workflow design, operator experience, and the number of systems in use. Many manufacturers offer the capability to operate multiple machines simultaneously, with software platforms often supporting up to four devices running in parallel.

In practice…
  • High-volume testing environments may prioritise workflow efficiency and the ability to scale testing capacity using multiple devices.
  • Teams with varying levels of experience may benefit from systems that provide guided feedback to support consistent test outcomes.

3. Running Costs & Consumables


AccuFIT & PortaCount: Use alcohol wicks and may require particle generators in very clean environments, with small but consistent operational costs.
QuantiFit2: Has no consumables, reducing your long-term cost per test. For large-volume testing (hundreds or thousands of tests annually), consumable-free systems can become more economical.

4. Portability & On-Site Flexibility


All quantitative fit testing systems require a power source to operate. QuantiFit2 and AccuFIT systems offer optional battery-powered configurations, which can support increased flexibility for on-site, multi-site, or field-based testing.

AccuFIT & PortaCount: Portable cases allow movement, and with the use of compatible battery packs, these systems can also be operated in environments where mains power is not readily available. For example, the AccuFIT battery pack may also be used to support the operation of a PortaCount system. These systems may also rely on appropriate ambient particle levels when using APC-based testing methods.

5. Ease of Use & Training


AccuFIT 9000 Series: Intuitive on-screen workflows reduce training time for new operators. When multiple staff members need to operate the device, usability matters, and AccuFIT is particularly strong here.
PortaCount 8048: Powerful software offers more configuration and reporting options, but with a higher learning curve.
QuantiFit2: Simple workflow, though adaptor management adds a step.

6. Calibration, Warranty & Support


AccuFIT 9000 Series: 3-year warranty provided as part of the standard package.
PortaCount 8048: Large UK support ecosystem with established calibration routines.
QuantiFit2: Designed with a simplified servicing approach, depending on configuration.
All quantitative fit testing systems require periodic servicing and calibration, typically on an annual basis, with broadly comparable servicing costs across manufacturers. For organisations planning long-term use, factors such as warranty terms, service availability, and calibration arrangements may influence overall operational planning.

7. Reporting & Compliance Documentation


AccuFIT & PortaCount: Provide detailed, audit-ready PDF and CSV export options, ideal for regulated industries or high documentation requirements. If you undergo regular audits or require detailed digital record-keeping, the AccuFIT 9000 PRO and PortaCount 8048 offer superior documentation flexibility.
QuantiFit2: Simpler but efficient results, favouring speed over granular reporting.
So, which quantitative fit testing machine is right for you?
  • Best overall capability and value: AccuFIT 9000 PRO
  • Best budget-friendly particle-counting model: AccuFIT 9000
  • Best for large organisations needing established software: TSI PortaCount 8048
  • Best for mobile testing teams: OHD QuantiFit2, AcccuFIT 9000 and PRO

Next Steps


If you’d like to find out more about our AccuFit range of quantitative face fit testing machines and how they compare to other leading models on the market, please contact Fire Safe International today by clicking here.

Image Source: Envato

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