Unless that rig is run in exceptionally dusty conditions, you will be throwing away a filter that's half used up.. or less. Follow the manufacturer's schedule or install a restriction gauge and change when indicated.
Search on this forum and you will see plenty of information on this topic. It can take 5K miles or more for a filter to load up enough where its efficiency has reached a peak level, so if you change the filter too often, you are allowing the engine to ingest MORE contaminants, not less.
There are engineering white papers out the wazoo highlighting the lunacy of overly frequent air filter changes. The one I just found,Done at the Latvian University of Agriculture, and still have on my desk, tested filters collected from dealerships of a certain model of Renault commercial van. Most were changed at the factory interval. 91 were collected and flowbench tested in the same airbox as used in the vehicle. They tested an empty housing and then the housing with a new filter to get the baseline. None reached the restriction limit, even some of those with more than three times the recommended interval on them. The filters changed at the factory interval were at roughly 30 percent of the rated maximum restriction. In others words, perfectly good filters were being tossed at the factory interval.
Again, do the searches... here and elswhere.