This filter fan can be used in outdoor enclosures where warm air has to be dissipated. To clean and exchange the filtermat, it is only necessary to open the lockable door of the outdoor hood eliminating the need to allow interior access to the enclosures. An IP55 protection level is achieved due to the special design of the hood and the use of fine filter mats. The plastic casing is impact resistant, highly weather proof and resistant to UV light. This product is CE, UL Recognized and RoHS compliant.