What is this button for ?

3238 Views 11 Replies 8 Participants Last post by mattandjulie, May 27, 2022

Skills88

Discussion Starter · May 13, 2022

I have a button on my dashboard not covered in the manual. It related to air intake and the symbol is of an arrow coming through two columns of dots. My guess would have been that it is a 'switchable' pollen filter but I have never heard of one. Can anybody advise me please?

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MartsCT200

· #2 · May 13, 2022

From an old thread with the same question:

What is the function of this button?

Filtered air? If so, is the air not always filtered?

www.ct200hforum.com

The manual from the online Lexus service says:
"Micro dust and pollen filter button.
Operates micro dust and pollen filter on/off. Outside air mode switches to (recirculated air) mode. Pollen is removed from the air and the air flows to the upper part of the body. Usually the system will turn off automatically after approximately 3 minutes."

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Haha_jizzjizz

· #3 · May 14, 2022

MartsCT200 said:
From an old thread with the same question:

What is the function of this button?

Filtered air? If so, is the air not always filtered?

www.ct200hforum.com

The manual from the online Lexus service says:
"Micro dust and pollen filter button.
Operates micro dust and pollen filter on/off. Outside air mode switches to (recirculated air) mode. Pollen is removed from the air and the air flows to the upper part of the body. Usually the system will turn off automatically after approximately 3 minutes."

I wonder why it turns off after 3 minutes. Is outside air automatically filtered when the setting is set to outside air?

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TobiasSing

· #4 · May 15, 2022

I think it has something to do with filtering the inside cabin air for a few minutes.

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b_robert31

· #5 · May 19, 2022

It redirects the airflow through top vents and filters the inside cabin air for a few minutes. Replaceable filter inside the glove compartment. You can buy carbon replacement filters on Amazon (cheaper than Lexus).

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Haha_jizzjizz

· #6 · May 20, 2022

TobiasSing said:
I think it has something to do with filtering the inside cabin air for a few minutes.

Yea, but why does it turn off after only a few minutes? Just curious

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TobiasSing

· #7 · May 21, 2022

Haha_jizzjizz said:
Yea, but why does it turn off after only a few minutes? Just curious

My guess is that it's programmed to turn off after a few minutes because whoever designed it figured that this was enough time to filter out enough. Maybe running the filter constantly would use it up or clog it up faster without much additional benefit.

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Storm70

· #8 · May 21, 2022

Skills88 said:
I have a button on my dashboard not covered in the manual. It related to air intake and the symbol is of an arrow coming through two columns of dots. My guess would have been that it is a 'switchable' pollen filter but I have never heard of one. Can anybody advise me please?
View attachment 61359

I use this button to clear out nasty farts. Works well.

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ddonalds

· #9 · May 23, 2022

TobiasSing said:
My guess is that it's programmed to turn off after a few minutes because whoever designed it figured that this was enough time to filter out enough. Maybe running the filter constantly would use it up or clog it up faster without much additional benefit.

so, are you saying, that the cabin filter behind the glove box is only used when you press this button?

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TobiasSing

· #10 · May 23, 2022

ddonalds said:
so, are you saying, that the cabin filter behind the glove box is only used when you press this button?

that filter normally filters outside air, not inside air. So, when the system is set to recirculate, it's not being filtered. Unless you hit the pollen filter button.

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ddonalds

· #11 · May 27, 2022

Interesting I didn't realise this

Thanks

DD

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mattandjulie

· #12 · May 27, 2022

Skills88 said:
I have a button on my dashboard not covered in the manual. It related to air intake and the symbol is of an arrow coming through two columns of dots. My guess would have been that it is a 'switchable' pollen filter but I have never heard of one. Can anybody advise me please?
View attachment 61359

It’s a fart button. Activate at the time and it will run for 3 minutes as the interior air is filtered.

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