Designed to prevent dust infiltration, this cabinet can safely secure high value electronic components in industrial applications. Two continuous duty 4" blowers (110 CFM) allow a good air circulation throughout the cabinet. Small dust particles are stopped by the large front door filter. The cabinet can be secured to the floor for maximum protection. The special door lock insure a perfect door seal. Once the rear access panel is removed, cable connections can be made easily, and the rear filter cleaned. Maintenance: clean dust filters weekly.