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Air Filter for Prius 2004 to 2015 - extend the life of your hybrid battery

Availability: Usually ships the same business day

Filter04  US$15.00, 10 for US$100.00  Year:: 

You get a 1/2 inch deep filter with 1/10 inch holes so the air goes through a four layer matrix. Very little dirt gets through and the holes are big enough (1/10 of an inch) so there is little air resistance. (We had actually been hand cutting filters from the same material for 1.5 years. Works great no know problems!) The filter is held in place with Velcro we include. The Velcro's adhesive is rated to withstand -40 F to 190 F. You also get instructions on the installation and for the 2004-9 the instructions include optionally cleaning the fan and the battery.

The 2nd picture to the left shows some of the dirt that was in the air passage on the sides of the battery modules. The next picture is the bottom of the battery case from a 2010 to 2015 Prius. The lines of dirt come from the dirt that was at the bottom of the air passages between the battery modules. The fan is a fairly dirty fan but we have seen far worse where no air could flow at all. From the pictures you can see that the fan is not a great filter and the battery also gets dirty. The pictures are of a 2010 to 2015 Prius and it is more prone to collecting dust in the battery but the 2004 to 2009 Prius also does. If either fan or battery gets dirty it can restrict the cooling air and the batteries will heat up. This can shorten the life of the battery. The 2004-15 Prius has 28 battery modules and each module has 6 cells. Dirt in the battery is especially deadly because if one cell heats up and looses capacity the whole pack will fail. Yes this can be repaired but all this can be avoided with cleaning and a filter to prevent it from happening. You will only have to clean the filter in the future but that is easy. It is an easily accessible filter. I have been using this filter in my own 2007 Prius for months. I cleaned and found only a thin layer of very fine dust on the fan and nothing on the batteries. But the filter did get dirty.
The 2004-09 Prius does not come with a filter for the air used to cool the hybrid battery. As a result the fan and the crevices between the battery modules often clog up with hair and dirt. When that happens the battery can overheat shortening its life and causing the car to drive badly as it will try not to use the battery in an overheated state.

Our filter itself is very porous with large holes to allow plenty of air to flow. We have been hand cutting them and putting them in the Prius for about 1.5 years now with no problems.

Our filter captures all the hair and most of the dirt so your fan and battery should not clog up. This is very important if you regularly carry people (yes we have seen human hair in the battery and hair from clothing) or pets in the back seat.

For the 2010 to 2015Prius the air is sucked in at the bottom of the rear seat. If any dust or hair has accumulated on the bottom of the seat and it gets stirred up when someone gets in or something is put on the seat and the fan happens to be running. This dirt gets sucked into the fan. The exhaust from the fan is blow straight into the battery so there is less back pressure and more of it gets blown into the battery.

Once the filter is installed you have to look at it on occasion . (The filter can easily be seen as it is just behind the intake between he rear passenger door and the back seat.) When the filter turns to dirty gray take it out and wash it. The filter can be washed with plain water (garden hose).

It is easy to install. You just lift up one side of the back seat and undo one bolt to get the the plastic grill it fits behind.

For the 2004 to 2009 Prius we include instruction on how to install the filter and how to clean out the fan, battery ducts and battery cooling passages. This filter is vital as a about 75% of the batteries we take apart have some dirt in them restricting the cooling. The instructions are set up so you can just install the filter, and also clean the fan and ducts if you choose to. If the fan is very dirty you can also clean the hair and dirt out of the hybrid battery. You can down load the instructions now.

Why take a chance and have your hybrid battery fail prematurely.


Availability: Usually ships the same business day

Air Filter for Prius 2004 to 2015 - extend the life of your hybrid battery Filter04  US$15.00, 10 for US$100.00  Year:: 

We usually ship your order the same day if entered by 4:30 PM. Los Angeles time Monday to Friday.   We have special shipping rates available for International orders. See our full shipping policy. International Air Mail takes about 5 to 15 days to most countries.
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