Specifications:

• 3M 7100004635 FT-31 Sensitivity Solution
• Manufacturer: 3M
• Part Number: FT-31
• Solution Type: Bitrex (Denatonium Benzoate) Sensitivity Solution
• Container Size: 55 mL bottle
• Taste Profile: Bitter for easy user detection
• Intended Use: Used to determine wearer sensitivity prior to fit testing
• Compatibility: For use with 3M FT-30 Qualitative Fit Test Apparatus and other compatible systems
• Application Method: Aerosolized spray within fit test hood
• Shelf Life: 24 months (unopened, stored per manufacturer guidelines)
• Packaging: 1 Each

Ideal Industries:

• Construction
• Manufacturing
• Oil and Gas
• Healthcare
• Utilities
• Chemical Processing
• Mining

Ideal Applications:

• Respirator fit testing
• Safety program compliance checks
• Occupational health and safety evaluations
• Industrial PPE training programs
• Routine respirator maintenance procedures

The 3M FT-31 Sensitivity Solution, Bitter is a critical component in qualitative respirator fit testing programs designed to ensure workers achieve a reliable and secure seal when using protective face masks such as N95 respirators and other approved PPE. This bitter aerosol sensitivity solution is used during the initial screening phase of fit testing to determine whether the wearer can detect the bitter taste agent, which is essential before proceeding with mask seal verification. Widely used in OSHA-compliant safety programs, it supports occupational health requirements across industries where airborne hazards are present, including construction, healthcare, manufacturing, and laboratory environments. Professionals often search for terms such as respirator fit test solution, bitter fit testing spray, qualitative fit test kit solution, and PPE compliance testing products when sourcing this item for workplace safety programs. By ensuring proper sensitivity detection, the FT-31 helps safety managers confirm that fit testing results are accurate and reliable, reducing the risk of exposure to harmful airborne particles. It is a trusted tool in respiratory protection programs where proper mask fit is as important as the respirator itself. Enviro Safety Products is recognized as an experienced and trusted supplier of certified PPE and respiratory protection solutions, helping organizations maintain compliance, improve worker safety, and implement effective fit testing procedures with confidence.

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