Carbon filter change frequency - outdoor skimmer intake line

[Brian_68]

So I have a carbon block filter on the air intake coming from the outside to pick up any pollen, dust and inadvertent pesticides. I was wondering though how often is anyone using something similar changing the carbon filter? If there any way to calculate air intake volume / time to a change interval based on a standard RO carbon block? I was thinking monthly but not sure if that is enough or too frequent and throwing away a filter that still has life.

 

[CJD18]

So I have a carbon block filter on the air intake coming from the outside to pick up any pollen, dust and inadvertent pesticides. I was wondering though how often is anyone using something similar changing the carbon filter? If there any way to calculate air intake volume / time to a change interval based on a standard RO carbon block? I was thinking monthly but not sure if that is enough or too frequent and throwing away a filter that still has life.

got any pics??

 

[Brian_68]

got any pics??

Not very exciting LOL - a RO add on canister with tubing going in and out mounted on a floor joist in my basement.