Quote Originally Posted by JapanABC View Post
Every time you open the door whether in a gasoline station, parking and etc... where the heavy pollution is concentrated enters your vehicle, even when you open the windows. The cabin filter cleans the cabin out for any contaminants or pollutants that may have entered your vehicle, always remember that the vehicle is not 100% sealed off from the inside, there are a lot of spaces where fumes and etc... can enter the vehicle.

Air filter build quality at 1st glance can be viewed by the naked eye, but can you see the filter media's fibers if how dense it is inside like microscopically? Where the dirt, dust and etc... which your naked eye could not see. Only a microscope can view the media fibers inside an air and cabin filters.

filter-viewede-microscopic-lense.jpg
You should be using hepa filter then, those with carbon activation and ionizer.

iL pass with being meticulous on cabin filters as my environment is not so polluted. Il just replace them once a year with the cheapest i could find.

I bet one could die first from inhaling the accumulated carbon dioxide from own breathing because of not opening the car than the toxins from opening the windows in the gas station.

Also being so much air-clean could weaken the immune system from allergens.

I'm wearing surgical mask anyway while driving, its the new normal ih.