Manufacturer: KOKEN LTD.
Model: FIT-II

Koken FIT-II Qualitative Fit Test Kit

JIS T 8150:2021 Standard

Mandatory Statutory Fit Testing:
Required for welding operations【*1】, and Class III management areas【*2】

• Uses Sodium Saccharin solution (sweet taste component)
• Includes 10 test hoods for multi-person testing
• Features clear labeling to distinguish between sensitivity and fit test solutions

※1 Regulations on fit testing mandated by the Ministry of Health, Labour and Welfare (MHLW Notification No. 286, July 31, 2020).
※2 Statutory fit testing under MHLW Notification No. 91 (effective May 31, 2022; applied from April 2024).

Kit Contents

1. Test Hoods: 10 units
2. Sensitivity Nebulizer: 1 unit
3. Sensitivity Test Solution: 5ml x 12 bottles
4. Fit Test Nebulizer: 1 unit
5. Fit Test Solution: 5ml x 12 bottles
6. Nebulizer base: 1 unit (can be used as a stand for nebulizers)

Replacement Parts

◆ FIT-II Replacement Hoods (10 hoods): 1
◆ FIT-II Replacement Solution Set: 3 & 5 (Sensitivity and Fit Test solutions, 12 bottles each)
◆ FIT-II Replacement Nebulizers (set of 2): 2 & 4 (Includes 2 nebulizers and 2 labels)

Perform your first fit test with confidence!
Video guides for smooth fit testing procedures

VIDEO-GUIDED FIT TESTING

Easily understand the “complete fit test sequence,” ranging from the “threshold screening test” (mandatory before qualitative fit testing) to the actual fit test procedure and corrective actions for failed results. The content also explains key points for instructing and training the test subjects.

Video Content

Introduction to Fit Testing:

• Objectives of fit testing.
• Full fit test workflow.
• Precautions during the testing process.

User Training & Donning:

• Pre-use inspection of the mask.
• Correct donning techniques.
• User seal check methods (positive/negative pressure).

Statutory Fit Test Execution:

• Taste threshold screening method.
• Step-by-step fit test protocol.
• Guidance for failed test results.

1) Normal Breathing Subject stands still and breathes normally as if in a typical work setting. During the test: Subject breathes through the mouth and confirms no sweet taste is detected. Duration: 1 minute

Video: Performing the Fit Test

Pass Criteria: Fit Factor must reach 100 or higher

Video: Assessment guidance and troubleshooting for failed tests