DIY Cabin Air Filter

[talnlnky]

Originally Posted by YarisSedan

I think this mod would hinder the air flow slightly. If you ever look at a oem cabin air filter it has arrows that has to be installed a certain way. The way its designed to allow maximum air flow. If you take a filter thats not designed to be a cabin air filter it wont have the same type of flow rate.

yeah.... who cares.... humans can't tell the difference... i've got one year of experience with this type of DIY filter.

Also... this would ONLY be a problem if you drive around with your air on MAX all the time and still felt you needed a stronger fan in your car.


All who drive around town with the fan on max all the time please raise your hand.
...


thought so.

[RomGrr]

Originally Posted by talnlnky

yeah.... who cares.... humans can't tell the difference... i've got one year of experience with this type of DIY filter.

Also... this would ONLY be a problem if you drive around with your air on MAX all the time and still felt you needed a stronger fan in your car.


All who drive around town with the fan on max all the time please raise your hand.
...


thought so.

:::raises hand:::

We've had 105-110 heat index here the past few weeks. If the car had a moonroof I'd probably attempt to ring a home window unit up to it

I'm a little confused...this filters the air being sucked into the air conditioner, or the air being blown into the cabin? And how would changing the A/C settings affect this (i.e. setting to recirculating)? The filter seems vital to a long lasting and efficient A/C system. How can this not be included with the car?

[Astroman]

I had mine out for a while (made new ones), and had a musty smell when using the AC. Now that I have a new filter in, the smell is gone.

[PatrickJohnson]

the filter is post-ac, it only filters the air coming out of the blower of the ac unit. as such, the unit's operation is unaffected by leaving it out, it just means that whatever allergens/dust your external ac air intake suck in will end up in some amount inside your cabin. with the filter in place, the dust that makes it to your cabin is greatly reduced, and with an allergen rated filter you can cut down on pollen and the like. helps allergies while driving.

[b_hickman11]

Originally Posted by PatrickJohnson

the filter is post-ac, it only filters the air coming out of the blower of the ac unit. as such, the unit's operation is unaffected by leaving it out, it just means that whatever allergens/dust your external ac air intake suck in will end up in some amount inside your cabin. with the filter in place, the dust that makes it to your cabin is greatly reduced, and with an allergen rated filter you can cut down on pollen and the like. helps allergies while driving.

Actually the filter is between the air inlet and the blower. The air comes in, goes through the filter, through the blower fan, and then through the rest of the AC and finally the vents.

[PatrickJohnson]

that is not accurate. The air is blowing upward from the blower, into the filter, and out the vents. I promise. I tested. Open your filter housing and turn on your AC. a quick hand over the blower motor while running (CAREFUL!) will confirm that the air hits the filter after the blower, and mere visual inspection will easily show the path of the air once it passes the filter.

[b_hickman11]

Originally Posted by PatrickJohnson

that is not accurate. The air is blowing upward from the blower, into the filter, and out the vents. I promise. I tested. Open your filter housing and turn on your AC. a quick hand over the blower motor while running (CAREFUL!) will confirm that the air hits the filter after the blower, and mere visual inspection will easily show the path of the air once it passes the filter.

I tried that the very first time and I also thought the air was blowing up. But after looking at all of the parts a little closer, it actually blows the other way.

You might want to check that again. Look under the dash while turning the knobs that selects re-circulate or fresh air. You will notice that this will move the plastic door that is right above the filter. When the door moves to the back, it closes off the outside air inlet and opens the re-circulate inlet. When the door moves to the front, this closes off the re-circulate inlet and opens up the fresh air inlet. If air was blowing up into the filter, the air would always blow into the car from underneath the dash or would blow cold air outside the car, and would never go out the 4 vents on top. You will notice that the vents are not connected to the system here. They are connected on the bottom side of the blower, not the top.