Question about Levoit Replacement filter for Core 300/300S

This filter filters all pollutants; the allergy filter probably only filters pollen, but I can't say for sure. I looked at the test results on the internet and this filter was listed as the most efficient for my appliance with the best test results

The 300/300S filter for the Levoit Core300 is a HEPA filter of filter class H13. This can filter more than 99.95 % of suspended particles (pollen, fours, dust, ...) from the air. I assume that the standard filter filters less than 95 % from the air, i.e. the meshes of the filter are larger so that more particles get through and are not caught by the filter.