FAQ

Once an order has been submitted we are unable to add to the order. You are always welcome to place a new order.

We can remove items from orders however, since we process orders very quickly, we recommend contacting us with the request as soon as possible. If your order has already shipped you can return the item for a refund.

Once an order has been placed, we are unable to change the payment method. You can always contact us to cancel the order and we can refund you for the order placed. Please note it can take 5-7 business days for credits to appear on your card. A new order can be placed using the payment method of your choice. If the order has already shipped from our warehouse, it can be returned to us after it has been delivered. The customer is responsible for all return shipping charges.

Promo codes can be applied to orders within 24 hours of when the order has been placed.

As the filter gets dirtier, the air flowing through your vent system could become restricted. This air restriction limits the efficiency of your air conditioning or defrost system. Extremely dirty filters can also be a source of unpleasant odor in your car.

Some of our filters contain carbon in the media. This is "activated charcoal", the same type of carbon used in water filters. The carbon gives the media it's darker look. Where the original equipment filter is carbon, the Filterheads cabin filter is made with carbon media. Carbon is included in some cabin filters to absorb odors from air flowing through your vehicle's vent system.

It is a filter that cleans the air entering into the passenger compartment through the vehicle's vent system. It is similar to an air conditioning filter you may have in your house. It helps keep the vehicle's vent system and interior clean. Most cars manufactured in the past few years have one.

Our filters are "aftermarket" - which means they are made by a company that has no connection with the car manufacturer. Aftermarket has both good and bad reputations. Some aftermarket brands are known for being better than the original parts. Other brands, unfortunately, give the aftermarket a reputation of being a cheap alternative to original parts. The filters we sell are as good as, if not better, than the original parts. Each part is designed to meet or exceed the function of the original.

The cabin filter should be changed every 15,000 miles or once every year. The service interval can vary depending on your driving habits. For specific recommendations for your vehicle, check the maintenance section of your owner's manual.

The media in these types of filters will perform exactly the same in both directions when first installed. The difference between the sides is their capacity to hold particles before the filter becomes "clogged". The way filter media is tested is by measuring how much it restricts the airflow after a specific quantity of dust (grams) has been caught. A filter that is "backwards" will reach its maximum allowable restrictiveness at a lower number of grams caught. Most filter media (including ours) is made in layers. The more open weave layers are on the "input" side, and the tighter woven layers are on the "output" side. You won't damage your car by putting it in the wrong way. The filter will simply reach its maximum allowable restrictiveness sooner. A filter at or beyond its maximum allowable restictiveness will cause the vehicle's air system to move less air than intended. The most significant consequence would be ineffective defrosting of the windshield. The directional indication on the edge of a cabin filter will be oriented so that the higher capacity side will face the dirty incoming air.

We provide you with an instruction sheet and/or a video that shows you how to change your cabin filter and where it is located in your vehicle. Your owner's manual may also contain some of this information. Generally, the filter will be located behind the glovebox, below the glovebox, under the windshield cowling or under the hood.

Start by looking up your vehicle's make, model, and year with the drop down boxes on the top of this page. If it is listed as having a cabin filter then your vehicle came with a cabin filter from the factory or was offered with a cabin filter option. A new filter can be installed in the vehicle if the cabin filter housing is present.

We have resumed shipping to Canada. All orders are subject to a $10.00 flat shipping cost We also offer the option to prepay duties and taxes at the same time you place your order. This is a $9.95 flat fee which is added onto the shipping cost when selected. All prices are in US Dollars.

Yes, we do sell a select number of engine air filters. You can always search our selection to find the right filter. We proudly sell only Purolator engine air filters.

You can if your specific vehicle was designed to use one. Some vehicles came from the manufacturer without an optional cabin filter installed. In these cases, you can simply insert the correct filter into the empty housing. In other cases, a vehicle may have come from the manufacturer without the optional cabin filter or housing. The housing can be ordered from a car dealer and needs to be installed before you can use filter. Some cars were manufactured to not include the option of a cabin filter. In this situation, one cannot be added.