Step 1: Tools and Supplies and First StepShow All Items friend was going to clean the fan in hp pavilion dv5. this was the top video when i searched this topic. High temperature of ASUS laptop air outlet Overheat of laptop usually results from something stuck in the fan and radiator, such as dust/ hair/ tar in cigar. These oil substances easily absorb and attach dust / hair. At this point, overheat won't be improved even you use external radiating devices, such as radiating pad. Such product can only lower the surface temperture of case , instead of interior temperature. If the overheat problem is resulted from stuck dust, you can initially look for assistance from ASUS customer& service center. Please do not clean the interior by using the device with strong air, such as air boost compressor. We have  a real case that fan is damaged by strong air wave If you need to clean by yourself, we suggest you use the Air compressor at a distance from the spray.

Do not use the air boost compressor in an up-side-down position Air vent is usually located at tow sides of laptop.do air purifiers work for allergies Design of air vent for some models of notebook is hidden style ( like UX series ) . inline electronic air cleanerAir vent is not at two sides of laptop but at pivot part of laptop (shown as red in below image)mass air flow sensor cleaner reviews Attention : Some minor models (ex. T100 series)  is not suggested to clean by the above instruction because its radiation is lower without fan and air vent and  it's radiated by case . If your problem cannot be solved, please contact ASUS customer& service center for further information. Does this document solve your problem?

What can we do to improve this document? To get rid of dust that had gathered near the fan, I put a vacuum cleaner to the air intake (with the computer turned off). This removed the dust. It also caused the fan to rotate at a fairly high speed. Quite faster than normal speed, judging from the sound. Do I risk destroying stuff by doing this? You could damage the fan from spinning it that way. You could also damage many components in the PC using a vacuum cleaner - it generates a large amount of static electricity! You should NEVER use a vacuum on electronic equipment! The proper thing to do would be to open the machine out and blow the dust free with non-static compressed air. (It's best to hold fans still rather than letting them spin freely for the same reason having the vacuum spin them up is bad, but very few people bother to do this because with quick bursts of air the odds are very slight.) I have been told that each motor of the PC's fans relies on bushings, that are built to tolerate a certain RPM.

Exceeding that RPM, such as when large volumes flow, can reduce the life of the fans. In addition, off-center suction can place a tangential torque on the axle of the fan. So you do risk this kind of damage as well. I have done it to many many machines and have not reduced the useful life of expensive fans. You can definitely destroy a cheap fan very easily. For desktops, fans are easily replaced. For laptops...not so much.Browse other questions tagged laptop fan cleaning .As you look at a duster can, whether on a store shelf or on your desktop, it is not likely that you’ll recognize the difference between products. Of course, some cans are tall and some are short, but to the untrained user it is all the same. Unfortunately, that is not the case! In fact, these products feature a bit more complexity than one would think; and understanding that complexity will help you make the right choice. It is NOT Air in a Can. First and foremost, it is imperative to note that a computer cleaning duster is NOT “canned-air”.

This misperception, can lead consumers to use the product in a manner that can be harmful to themselves or to the equipment they are cleaning. Computer-cleaning dusters actually contain a liquefied gas, which functions as the products propellant (similar to any other aerosol product on the market). The only difference is in other aerosol products the propellant is used to propel a product (hair spray, cooking spray, insecticide, etc) through the nozzle. However, in a duster propellant is used to propel it’s own vapors through the nozzle. It is important to clarify this for two reasons: 1.       Understanding that these products are not just air in a can will hopefully give you a better appreciation for some of the information to follow, and help facilitate the need for proper usage, storage, etc. 2.       Most dusters today contain one of two types of compressed-gas, and understanding that there is a difference will help you select the right product for the job at hand.

The Dust-Off® line of compressed-gas cleaning dusters includes products classified as General Usage dusters and Special Application dusters. General Usage Dusters contain a safe propellant identified as difluoroethane or 152a. Cleaning dusters containing this compressed-gas are the most commonly used cleaning dusters on the market today. They are ideal for cleaning computers, electronic equipment, cleaning car interiors, craft preparation and cleaning, safe cleaning of collectibles, general household dusting and more. However, General Usage dusters should not be used near potential ignition sources, such as open flames, hot surfaces, or spark producing equipment (such as paper shedders). With your new found understanding of the product contents, common sense will serve as an accurate guide to appropriate applications. Special Application Dusters contain a safe propellant identified as tetrafluoroethane or 134a. Cleaning dusters containing this compressed-gas are most commonly used in environments where flammability is a concern.