Is it Necessary To Install A/C Filter?

[kenlitting]

ideally when we have to replace ac filter. indica vista, swift etc have their ac filters cleaned at 10,000km replacement only if dirty. but volkswagen polo petrol gets ac filter replaced at at 1st service. why thi difference. obviously first two are diesel vehicles. are ac filters same as pollen filters

 

[kannan]

ionizer?

Hey guys check this out. this site is of an ebay seller in this he demonstrates a smoke test, calming that the ionizer can clear the smoke.
is this a scam?

 

[tai_newbie]

Dzire zdi a/c filter

I have a quick question. I remember reading some where that dzire does not come with a cabin air filter / ac filter.. This needs to be installed separately. Is it true?