The 3M™ Versaflo™ TR-6600 Prefilter is engineered to extend the service life of particulate (HE) filters used in 3M™ Versaflo™ TR-600 and TR-800 Series Powered Air Purifying Respirators (PAPRs). By capturing larger airborne particles before they reach the main filter, this prefilter helps reduce filter clogging, improve airflow, and optimize system performance. The maintenance-free design allows for quick disposal when the prefilter is loaded with debris or damaged. Ideal for industrial environments where airborne particulates pose a contamination or equipment efficiency risk, the TR-6600 is a practical, cost-effective addition to any Versaflo™ PAPR system.

Key Features

Particle Pre-Filtration: Captures larger particles to prevent premature clogging of the primary HE (High Efficiency) filter.
System Performance Optimization: Enhances overall airflow consistency and can help extend the operational life of PAPR filters.
Easy to Use & Disposable: Simple drop-in installation; replace regularly for best system performance.
Maintenance-Free: No cleaning required—just replace when loaded or damaged.

Compatible with:

3M™ Versaflo™ TR-600 and TR-800 Series PAPR systems
Use with Versaflo™ Filters and Cartridges

Intended Use

Ideal for professionals in facility sanitation, pharmaceutical manufacturing, food safety, industrial maintenance, painting, metal processing, and general manufacturing. Especially effective in environments where silica dust, spray particles, or heavy airborne particulates are present, the prefilter ensures peak respiratory system performance and maximum filter lifespan.

Product Specifications

Product Number: TR-6600 / 37354
3M ID / SAP ID: 7100021255
Legacy SKU: 70071618246
Cartridge Type: Prefilter for particulate (HE) filters
Compatible Systems: 3M™ Versaflo™ TR-600 and TR-800 Series
Color: Grey
Filter Type: Particulate
Hazard Type: Silica, general airborne particulates
Weight: 1.0 g
Dimensions: 0.289 m (L) x 0.226 m (W) x 0.167 m (H)
Packaging: 10 prefilters per bag
Intrinsically Safe: Yes
Certifications: Designed for use with CSA- and NIOSH-approved PAPR systems

Certifications and Standards

Designed for compatibility with NIOSH- and CSA-certified 3M™ Versaflo™ respiratory systems
Intrinsically safe when used with compatible Versaflo™ components