PTFE sheet TEMISH™

high-elongationporouslightweight

Overview
TEMISH™ is a PTFE filter material that enables filter cartridges to be curved and ultra-thin. The porous PTFE membrane is formed from fine fibers and physically captures dust and hazardous particles. The PTFE porous membrane is sandwiched by non-woven fabric layers to provide handling properties to the ultra-thin membrane.

Features
High collection efficiency. Low pressure drop. Compact. Easy to process. Long shelf life. High dust holding capacity (DHC).

• TEMISH filter meets NIOSH P100 and EN P3 ratings.
• Capable of collecting metal powder, silica, asbestos, and similar particles.
• Collection efficiency ranges from 99.5% to ~99.99995% depending on grade, offering a stable balance between airflow and filtration efficiency.
• Oil‑resistant grades available; the filter retains a large dust load without rapid performance degradation.
• Strong and flexible material allows versatile designs including thin curved cartridges and a wide selection of frames.

Characteristics
TEMISH demonstrates an excellent penetration/pressure‑drop balance and is stronger and more flexible than conventional glass‑fiber filters. Comparative data show improved penetration/pressure‑drop balance and superior mechanical strength versus glass filters.

Testing Conditions
■ Testing conditions
1. A simulated mask (250 cm²) was produced using pleated filter material.
2. The simulated mask was placed on the measurement jig and sealed to prevent leaks.
3. Loading tests were performed with PAO particles using the AFT8130A instrument (flow rate: 42.5 LPM).

Penetration Rate / Pressure Drop (summary)
■ Penetration Rate | ■ Pressure Drop
*P100 rating specification: measurement flow rate 42.5 LPM and load 115 mg. Penetration within 0.03% (assuming two cartridges installed).

Tensile / Torsion Experiments (summary)
■ Tensile strength comparison: glass‑fiber filters are brittle and tear easily; TEMISH is strong and flexible.
■ Torsion experiments show TEMISH maintains mechanical integrity where glass filters fail.
• TEMISH enables lightweight, compact cartridges (example: curved shapes can be made as thin as 5 mm in folded peak height).

Function / Applications
Image: CBRN Masks | Image: Industrial Masks (P100, R100, N100, P3) / Powered Air Purifying Respirator (PAPR) | Image: Medical Masks (N95, N99, FFP2, FFP3)

Technical specifications

• Commercial name / series: TEMISH™
• Material: PTFE porous membrane sandwiched by non‑woven fabric for handling
• Filtration rating: Meets NIOSH P100 and EN P3 ratings
• Collection efficiency: Approximately 99.5% to ~99.99995% (depending on grade)
• Performance balance: High collection efficiency with low pressure drop
• Particle types: Capable of collecting metal powder, silica, asbestos, PAO test particles, etc.
• Oil resistance: Oil‑resistant type available / retains large dust holding capacity
• Mechanical properties: Strong and flexible vs. brittle glass filters; supports curved and thin cartridge designs (example folded peak height down to 5 mm)
• Typical testing conditions referenced: simulated mask area 250 cm², flow rate 42.5 LPM, P100 spec load 115 mg (penetration within 0.03% with two cartridges)
• Typical applications: CBRN masks, industrial P100/R100/N100/P3 cartridges, PAPR, medical masks (N95/N99/FFP2/FFP3)