As you all know, our trucks' HVAC system does not include a cabin air filter. As a result, dust blown into the cabin deposits itslef all over the inside of the cab. My dashboard looks like a beach if I do not dust it off weekly. Additionally, the AC evaporator coils gets plugged with dirt/oil and airflow is reduced terribly.

After suffering through years of dusty dashboards and ripping the ducts apart to clean the AC evaporator coil, I decided to install a cabin air filter. I would have preferred to use a standard replaceable paper cabin air filter made for some other vehicle, but I could find no way to adapt one. The solution I arrived at was to fabricate an aluminum flange to which a 2 micron stainless steel mesh was bonded to. This assembly fits into the hole that feeds the blower fan from the intake. I hope this will reduce the amount of dust blown into the cabin and the fouling of the AC evaporator coil. I also hope the filter does not plug so quickly that I have to take it out to clean every month. Time will tell if this turns out to be a good or bad idea.

 

That mesh/filter defiantly looks like it would keep the coil clean. Keeping the filter clean might be a frequent task but at least you would not be breaking into the coil housing to clean the coil. Does it restrict the air flow much? Looks well made. Good job.

Good luck!

 

Thanks Bill. Airflow does not seem to be retricted but that might be due to the AC evaporator being plugged again. It has been awhile since I last cleaned it. We shall see if this new filter becomes the bottleneck.

 

Roughly 3 months and 3,000 miles later, the filter seems to be doing its job. There is a lot less dust buildup in the cabin. Airflow is still good.

It seemed like the ventilation system was still blowing the remaining dust out of the ducts for the first month though.

 

Well this experiment has come to an end. The filter was so plugged that airflow was barely there. This was in spite of several cleanings with a long vacuum probe through the recirculation intake. There was no way to get it completely clean without removing it, which involved removing the blower motor. That was a pain.

 

Thanks for the follow up!

 

After a couple of weeks of running around without the filter it occurred to me that as troublesome as it is to remove the filter for cleaning, it is an even bigger PITA to clean the AC evap core. I think I will put it back in.

 

While I got my dash out, I wonder if there is a logical solution to run a paper filter to a length of ( additional duct work) under dash frame that is now removed. I could tie it in to existing duct work and place filter where it should have been in the first place. Which is the passenger foot well behind glove box . What do you think?

 

Bob, hope things are going well for you and Stella!

When you are designing a box/space for the filter, ensure you are allowing for easy access once the dash is back in. If you go this route, take lots of pictures for those of us interested in adding this to our list of projects.

Be sure to check out your evaporator coil for debris while you are playing around in that area.

 

I thought about that too but I found that the only common path the air takes to get to the blower is the point where I put my filter. I want the air to be filtered both when it is being drawn from outside and also when it is recirculated. Other than that, Sous is right that finding a place to put the filter where it is easily accessed after everything else is buttoned up is important.

 

I will look into this today.
I'll take a few pictures.
Not sure if I want to go thru the trouble.
Was just thinking out loud when this idea of cabin filter was posted.
SOUS, I hope your travels do you and Kathy well.
I'm cleaning things up under that dash now..
Gets really dirty under there.
Had to do alot of wiring.
OP left it messier than I like it. Wiring up a head unit, cb radio, 3 gauges, acc USB port, inverter unit, subwoofer & amp, 3 rocker switches, ambient led lighting, and 650 lower panel.
So I figured rip everything out.
Pics today when I get into it.

 

..........

 

Sounds good. I hope you're able to find a good solution. Maybe it's simply putting two filters in. One for the recycled air intake and one for the fresh air intake.

 

Found this old thread while doing morning Java.
Cab Fresh Cabin Filter
Call Cab Fresh at 1-800-457-3739. I ordered a #19200 which is an F-2000 New Super Duty Filter kit. It screws down over to stock cowling by the driver's side wiper. Their part number for the replacement filter element is R19200. The filter kit includes one plastic housing to screw down and a single filter for $50. The replacement element is $18 It filters pretty well for dirt and pollen, but will not cut down on odors. I tried to install a filter in the blower motor housing like I did in my '97 Explorer. It did not last but a day before it failed! I installed the Ford factor filter kit in my '01 F-150 and it works great. I partially disassembled the dash in my F-250 and discovered no really good way to install a filter in the air plenum box. I have been using the filter from Cab Fresh (on my third filter element now) for about 2 and a half years. By the way, it works fine when wet. This will not work for the internal air filtering, but you can try the cut able filter material from Home Depot, etc and attaching it to the outside of the air intake box under the glove box. I tried that but did not like the way it looked (and it only worked for recirculation in the Max AC mode) and the wife did not like having to always be careful of her feet to not kick it. Your dog will probably not care how it looks!

try this site http://www.nemr.net/~cabfresh for Cab Fresh
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Tags19200, 60l, ac, air, cab, cabin, f2000, filter, ford, fresh, intake, part, r19200, replacement
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Thanks SOUS for your video on evaporator coil cleaning. I should check it. I decided, for the sake of moving forward, to install a cowl intake air filter kit for my truck. From an old thread I found Cab Fresh Filter Company out of Texas.

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FITS: FORD SUPER DUTY PICKUPS 1997-2007 ? PART NO. 19200 | Cabfresh Filter Company


AS YOU KNOW, Texas can get mighty dusty. So, the owner of this company was a farmer, and he hated to not have any kind of air filtration system. So he came up with a bright idea. Install a filter and plastic cover for filter OVER existing opening of our windshield cowl vent system. Which, as your aware is the driver's side of the cowl vent. Price was right $ 42 for the kit including micro synthetic filter element that you can get wet when you wash your truck. You can visually SEE when it gets dirty as it's White. I'll take pics when I install it. I MAY CONSIDER another in cabin filter behind dash where air intake rectangular tube is. I haven't decided yoe. At least I'm proactively eliminating a source of debris and particles from taking a free ride inside my cabin.