The MV-1300-0MEV 13-gallon wet/dry vacuum from Mi-T-M features a self-cooling, two-stage blower motor design. Exhaust air ducting reduces the possibility of motor contamination by dirt or moisture, and the electrical system is double protected. The unit has a filter efficiency of 99.5 percent to 1.0 micron, and a decibel rating of 51.2. www.mitm.com