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Fit Testing Equipment

You must be fit tested before you use a respirator in the workplace, and you must be retested at least every 12 months to make sure that the respirator you use still fits you. You must be fit tested with the specific make, model, style, and size of respirator that you will be using.

Not everyone can get a good fit with one specific respirator. If the respirator fails the fit test, then another make, model, style, or size must be tried until one is found that fits you properly. Therefore, your employer needs to provide you with a reasonable selection of sizes and models to choose from. When you've completed the fit testing process, it's very important that you know which make, model, style, and size respirator fits your face properly, and when and where you'll need to wear it for protection.

Also, the fit of your respirator must be retested whenever you have a change in your physical condition that could affect the fit of you respirator. Such changes could include:

  • Large weight gain or loss;
  • Major dental work (such as new dentures);
  • Facial surgery that may have changed the shape of your face; or
  • Significant scarring in the area of the seal.

Any of these changes could affect the ability of your respirator to properly seal to your face, which could allow contaminated air to leak into your respirator facepiece.

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2 Item(s)

  1. Mask Fit Tester MT-05U

    Quantitative Respirator Fit Testing (QNFT) is now easier than ever. The SIBATA Mask Tester Pro (MT-05U) conforms to OSHA and ANSI protocol and brings a collection of features and benefits never before seen in the marketplace.


    • Measures the Seal or Leakage of a Respirator
    • Provides a PASS or FAIL Measurement meeting government Mask Test Policy
    • The Leakage Rate is Displayed Instantly
    • Automatically measures the number concentration of particles inside and outside the mask
    • Meets N95 Respirator Efficiency


    1 MT-05U Mask Fit Tester

    1 Soft Fabric with Cut Out Cushion Carrying Case

    1 AC Power Cord with AC to DC

    2 Sampling Tube (Pair) One clear, one blue

    1 Absolute Filter for Zero Test

    1 Tube Joint Tool for connecting hose barb onto mask

    100 Male Hose Barb & Clip

    1 USB Cable

    1 Operation Manual & Software Manual with Software

    1 Certificate of Factory Calibration


  2. AccuFIT9000™ Quantitative Fit Testing System

    Click here to view the data sheet.


    • AccuFit9000 Fit Tester
    • AC Adapter
    • Alcohol Fill Capsule, Cartridge & Storage Cap
    • UFTA-998 Universal Fit Testing Alcohol
    • UTFA-HSK 5' Hose Sample Kit
    • Two HEPA Filters
    • Two Spare Alcohol Wicks
    • Custom Nanuk 930 Carrying Case
    • Accufit9000 PC Application Software
    • Flash Memory Drive
    • USB & Ethernet Cable
    • Nylon Accessory & Gadget Wallet
    • Operation/Service Manual and Two Year
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2 Item(s)