i clean the engine air filters every 4 months, then replace every 10,000km service. i don't go by date for replacement as my vehicle usage is irregular. cleaning is done by soaking in warm water with detergent, then moderate agitation, rinsing with a water hose, then spin dry in the washing machine. this is followed by an inspection - if i can see light pass through then it means it needs replacement already, may butas na. i do the same with the cabin air filters except no spin dry, i just put it back directly and run the a/c at full speed and let the air flow dry the filter. you can't do this to the engine air filter, papasukin ng water ang engine that is why spin dry muna before installing back.

for some reason mas mahal ang cabin air filters ng hyundai at kia compared to the engine air filters. cabin air filters cost 2x the engine air filters. for example yung sa starex P450 lang ang engine air filter while the cabin air filter costs P1000.

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i clean the engine air filters every 4 months, then replace every 10,000km service. i don't go by date for replacement as my vehicle usage is irregular. cleaning is done by soaking in warm water with detergent, then moderate agitation, rinsing with a water hose, then spin dry in the washing machine. this is followed by an inspection - if i can see light pass through then it means it needs replacement already, may butas na. i do the same with the cabin air filters except no spin dry, i just put it back directly and run the a/c at full speed and let the air flow dry the filter. you can't do this to the engine air filter, papasukin ng water ang engine that is why spin dry muna before installing back.

for some reason mas mahal ang cabin air filters ng hyundai at kia compared to the engine air filters. cabin air filters cost 2x the engine air filters. for example yung sa starex P450 lang ang engine air filter while the cabin air filter costs P1000.