Look for the arrow showing airflow direction on the old air conditioner furnace filter and remember which way that it points. Make sure that you turn off your HVAC system to stop the airflow. Remove the old air conditioner furnace filter and discard it carefully so you don’t put the dust and other airborne contaminants back in the air. Write the date you install the air conditioner furnace filters on the place indicated on the side of the air filter frame.

Determine the air intake area of the equipment and then cut sections of the channel to frame the outside perimeter of the air intake area. Remove the backing of the tape and apply the channel to the equipment. Measure the inside area of the frame and cut the filter element to fit in the channels. Lift the outer edges of the channel and slip the element into place.

Fiberglass air conditioner furnace filters are designed only to capture large particles and to protect your heating and air conditioning system; they do nothing to remove smaller particles like many allergens. These types of air conditioner furnace filters also have either no Merv rating assigned to them or in some instances, have a MERV rating of from 1 to 4.

Pleated type filters are more efficient than ordinary disposable type filters. They also have a longer filter life.

You should not use more than one filter in any one place in the HVAC system due the air flow restriction it imposes on the HVAC system. Consult your service manual regarding specifications for your particular furnace or air conditioning system.

The air filter is a critical component of your engine. We cannot stress enough that for proper care of your engine, the air filter must be in proper working order. The air filter in all of our Nitro kits is pre-oiled for your convenience, however it must be cleaned and re-oiled after running 2-3 tanks of fuel. To clean the air filter, take the foam filter element out of the rubber boot and use fresh Nitro fuel to rinse the dirt from the foam element.

Since the material is more dense, more filter material needs to be put into the filter to keep the keep the material's resistance to air flow lower. Therefore, more surface area of filter material is put into the filter frame. This also extends the life of the actual filter.

In most cases this filter will install in the same filter track that your existing furnace filter is installed. In those cases where an odd size filter is currently installed it may require a filter track to be installed. The cost from most HVAC contractors for this filter track would be $50. The filter can be plugged into a standard 115v outlet or can be wired into the 24v system in your furnace or air handler.

Although the FDA has no health-related standards, it does consider some portable air filtration systems to be Class II medical devices. In the United States, nothing can claim this status without FDA approval. To get approval, a manufacturer must show two things: (1) that the device is safe, usually indicated by the Underwriters Laboratory (UL) seal, and (2) that it has a medical benefit. Look for both the UL seal and a statement of the FDA's Class II approval.

To keep your furnace and air conditioner operating at peak efficiency. When the heat transfer surface of the furnace and air conditioner (indoor evaporator coil located on top of your furnace) gets covered in dirt (dust, etc...), it requires more energy to achieve the same load. For heating, this means you will consume more gas and electricity to heat your home, and for air conditioning, you would use more electricity to cool your home.

If you have not experienced a decrease in mileage or engine performance, chances are your filter is fine and does not yet need cleaning. To be more specific, the filter does not require cleaning if you can still see the wire screen on the entire air filter regardless of how dirty it may appear. When the screen is no longer visible some place on the filter, it is time to clean it.

No. An engine can only draw in a certain volume of air depending on the engine’s size (measured by such things as bore, stroke and number of cylinders). Vehicles are designed to accommodate large changes in air pressure so they can operate at sea level or at an altitude of 14,000 feet. Engine computers adjust the amount of fuel required as a result of changes in air pressure (density).

K&N has an active Custom Air Filter Program to meet the needs of consumers with special filtration needs. We offer thousands of possible configurations of custom filters, in different shapes, dimensions and heights. Click here to read more.

Use a K&N Filter Care Service Kit, available at all major auto parts stores and a low pressure nozzle-free garden hose. A filter cleaned with K&N cleaning products will ensure a lifetime of performance from your air filter. Instructions for cleaning your K&N air filter are on our Air Filter Cleaning Instructions page.

No, this can blow the filter material right out of the wire mesh and ruin the filter. Pick a nice day to clean the filter and let it dry naturally. A low pressure air flow such as from an industrial drying machine or blow dryer will help the filter dry more quickly.

Air purifiers take out a lot of the pollutants from our air which can irritate allergies and asthma. These pollutants include airborne particulate as small as 0.3 microns and includes pollen, dust, pet dander, mold spores and smoke.

Air filters are not measured by micron size. As an industry standard, air filters are tested in accordance with the ISO 5011 test protocol to measure capacity (the physical amount of dust a filter can hold before cleaning is necessary) and efficiency (the filter’s ability to trap and hold dust). See technical service bulletin 89-5R from the Filter Manufacturer's Council. The dust selected for the test contains a specified distribution of different particle sizes according to ISO standards.

Some systems such as water distillers do not require installation. Some, such as countertop filters and shower filters, require minimal installation by screwing a connector onto the kitchen faucet or shower pipe. Some, such as undersink systems, require more installation but the help of a friend who is good at handyman jobs will suffice. Alternatively, you may choose to ask a plumber to install the system.