The Airbox and airfilter are important parts of your bike. Clean air improves the combustion process, and the airbox helps reduce the noise from the engine. Keeping your filter in good condition helps with the combustion process, and checking the airbox can help identify problems with the bike (such as too much oil). The other thing to keep in mind with the airbox, is this provides the air intake into engine. This is important when going through water.

It is common for all 924's and 931's to have some amount of oil in the air filter box (airbox). This is due to the fact that the crankcase breather vents back into the airbox, for emissions purposes. However, there should not be an excessive amount of oil in there, as it's put there by blowby. Blowby refers to the combustion gases that escape past the piston rings. The more worn the rings are, the more blowby there is. The more blowby, the more oil in the airbox. See similar questions...

The best way to ensure proper oiling is to use our squeeze bottle recharger kit (Part No. 99-5050). With a squeeze bottle, you simply run a bead along the top of each pleat on both sides of the filter. If using an aerosol recharger kit (Part No. 99-5000), make one light pass over the entire filter area front and back. The oil will then be evenly absorbed throughout the rest of the cotton medium over the next several minutes. See similar questions...

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. See similar questions...

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. See similar questions...

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. See similar questions...

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. See similar questions...

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. See similar questions...

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. See similar questions...

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). See similar questions...

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. See similar questions...

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. See similar questions...

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. See similar questions...

Not at all. The PTFE particles in Tufoil so small, they pass through the filter as if it wasn't even there! Bulk filters that use the big wads of cellulose or edge on toilet paper rolls, filter fine. Yes. However, If you have an old classic that ran on oils before 1950, we recommend taking the engine apart and physically cleaning the sludge out of the crankcase and out of the valve covers before using Tufoil. A high detergent oil can stir that material up and cause problems. See similar questions...

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. See similar questions...

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. See similar questions...

The alternatives involve getting a joint ITD/CAEN account from the CAEN Office in the Media Union, which gives you access to the CAEN Sun Sparc 20s in NUBS and the Media Union Site, and the RS/6000 machines in the Media Union Site. It is also occassionally possible to get an account on a departmental unix machine, though not all departments have unix machines, and not all departments that do have unix machines offer accounts to all of their students, staff, and faculty. See similar questions...