Bosch's HEPA filters for 3931 series vacuums have square-filter geometry which helps maintain high suction power. The cartridge design makes filter installation easy and it captures 99.93% of particles 3.0 microns or larger. Shop HomElectrical now!
- Wet/Dry: No.
- HEPA filters capture 99.997% of particles 0.3 microns in diameter or larger.
- Square filter geometry makes dust less likely to get trapped - high suction power is maintained.
- Filters stay in the vacuum cleaner even when wet vacuuming.
- Cartridge design makes filter installation extremely easy.
- High-performance replacement filters for Bosch 3931 and 3931A vacuum cleaners.
- Not for use when vacuuming wet materials.
- Package contains 2 filters.