This Dust Filter Pack for the Net Shelter CX allows the user to reduce the airborne particles entering the enclosure. The reticulated plastic filter material is washable & easily removed/replaced. Using the Dust Filter Pack on the Net Shelter CX increases the Ingress Protection (IP) rating of the enclosure from IP44 to IP54 & reduces the risk of dust related equipment issues, such as overheating, system failure, & permanent data loss. Easily washed No purchasing of additional filters required. Simply remove the existing filter material, wash it in warm running water, and replace it back in its metal cassette. Reduce dust related equipment issues Protecting the equipment inside the CX from airborne contaminants such as dust reduces the risk of related equipment issues, such as overheating, system failure, and permanent data loss. Toolless rack mounting capabilities Server cases do not require additional tools to mount into APC Net Shelter enclosure, which allows the users to quickly & easily mount units in the rear of the enclosure. Lockable front doors It protects IT equipment from unwanted access. Light oak veneer finish The enclosure blends discretely into almost any office environment. Acoustic foam lining for noise dampening Superior noise reduction of installed IT equipment allowing the enclosure to be placed in a quiet environment.