How to Clean Air Conditioner Coils

Properly taking care of your air conditioner coils increases the air conditioners usefulness and life expectancy.  Getting down the gritty details of cleaning your air conditioner might not be as difficult as you might think. Much of it is routine maintenance you would be doing in part anyway, and a few cleaning tips you can easily master will help the chore even easier.

You Will Need a Few Items

Coil cleaner (this can be found in most hardware stores)

Compressed air in a can

Small cleaning brush

Screw driver

Routine maintenance

Step 1 - Remove Debris and Trash

In the area of the yard around the air conditioners housing, make sure there are no debris or excess dirt.  If the air conditioner sits at the corner, especially there will be a collection of dead leaves, broken branches and other similar trash that should be picked up on a routine basis as it can clog up and cause problems with the air conditioner.  It can also make the area look more inviting to small wildlife like snakes or mice. These tiny pests can make a mess and chew on wires if they try to make a home in the air conditioning housing.  Snakes in cold weather will look for someplace warm and dry to curl up so if you live in an area where these reptiles are known to inhabit keep an eye out for them.

Step 2 - Turn Off the Power

Before going out to clean the coils, turn off the thermostat.  Wait a few minutes to make sure it cycles down then turn off the power from the main switch outside.  This will keep you from getting a very nasty shock if you accidentally touch anything.  Powerful voltage surges through the machine and you do not need to experience anything other than cool, crisp air.  Give the electric current a few minutes to dissipate before removing the housing.

Step 3 - Remove the Housing

To remove the housing start by using the screwdriver to take out the screws being careful to put them in a container or bag so as not to lose them then carefully lift the grill off and set it aside.  

Step 4 - Blow Out the Coils

Locate the air conditioner coils. One of the reasons you should never use a hose to clean the grill will become apparent the second you see the coils.  It is natural for dust and dirt to accumulate on them, and if they get wet from the hose water you have a cloggy, messy hard to remove crusty crud all over the coils.  Holding something over your nose use the compressed air to carefully blast and blow out the dust and dirt then use the small brush to really clean them out as best you can.  You might have to give more than a few blasts of air followed by scrubbing to really clean them if they have not been maintained well.

Step 5 - Finish Up

Use the coil cleaner on the now dust free coils to make them more resistant to taking on more dust or grime.   Remember to put everything back as it was and then turn the power back on.  Wait a few minutes then turn the thermostat back on as well.

What happens if you sneeze in a clean room? Why are the 'bunny suits' in clean rooms sufficient, if they aren't even pressurized/sealed?

First of all when you wear a cleanroom suit as they are called, your mouth is covered so you should not be 'spraying out droplets' when you sneeze.Picture source: .:An Tou00e0n lu00e0 ngu01b0u1eddi bu1ea1n cu1ee7a cu00e1c doanh nghiu1ec7p :.As to why the cleanroom suits as they are, are sufficient, they are to prevent 'most' of the particles generated by our body via skin, clothing and breath from contaminating the environment. The most sensitive areas are the front-end wafer manufacturing plants. Cleanrooms in these areas have what you call laminar flow of clean air constantly flowing from the ceiling vertically downwards to the perforated raised flooring (where cleanliness level is lower, perforated flooring may not be used), refer to pictures below. nPicture source: EC centrifugal fans for fan filter unitsThis laminar flow of clean air acts as a barrier to prevent any particles generated from the human from being spreading horizontally. Instead they are flushed straight downwards by the laminar flow. Further, wafers are never left in the open. They are usually in closed plastic boxes. In even more sensitive production areas or facilities, basically 300mm wafer plants the wafers are totally enclosed in Front Opening Unified Pods (FOUPs). Where they are literally in a mini environment of their own. See pictures at the end. Normal wafer boxesnSource: SILICON WAFER SHIPPING BOX -FOSB FOUP-Front Opening Unified Pods (FOUPs)nSource: Entegris (MICRO Buyers Guide)nSee my other answer describing a little more on the environment in a cleanroom: Why does the wafer fab environment need to be so clean that the workers have to wear clean-room suits?What happens if you sneeze in a clean room? Why are the 'bunny suits' in clean rooms sufficient, if they are not even pressurized/sealed?

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What Are the Effects on Hearing of in Ear Headphones?
The main effect on hearing is the volume of the sound. Both the intensity and duration matter. However, it seems like hearing loss from personal music players is not as prevalent as from other causes like gunfire or occupational noise exposure (see also here).The specific problem with in-ear headphones is people tend to listen to them louder than other types of headphones, here is an example study that shows this result. So, in summary, there is not anything wrong with in-ear headphones if you listen at a low volume, but be wary that peoples' tendency is to listen louder with in-ear headphones, and you already mentioned liking loud music. The volume is going to be your problem.Be very wary with your hearing though: once you have lost hearing, there is no way to get it back at this time. Hearing aids only temporarily compensate for the loss. You might be okay now but regret a lifetime of noise exposure by the time you are an older adult.References:Clark, W. W. (1991). Noise exposure from leisure activities: a review. The Journal of the Acoustical Society of America, 90(1), 175-181. Hodgetts, W. E. , Rieger, J. M. , & Szarko, R. A. (2007). The effects of listening environment and earphone style on preferred listening levels of normal hearing adults using an MP3 player. Ear and hearing, 28(3), 290-297.Mostafapour, S. P., Lahargoue, K., & Gates, G. A. (1998). Noiseinduced hearing loss in young adults: The role of personal listening devices and other sources of leisure noise. The Laryngoscope, 108(12), 1832-18391. Best Cheap On Ear Headphones?Sorry, but quality DOES have a price and it is NOT that low! If REAL quality is an issue, please go for REPUTABLE brands only such as B&W, Sennheiser (most affordable), Shure, Grado, Denon, AKG, Audio-Technica (NOT to be mixed with Technic which is utter rubbish as well!), Etymotic or Beyerdynamic. Things like V-Moda, Klipsch, Sony, Panasonic, JVC and Philips are ONLY "okay-ish" indeed. Please do NOT fall a victim to FASHION ACCESSORIES by buying Boombox, Ministry of Sound, Sol/Republic/Revolution, Noontec Zoro's, Benetton, a-jays, iFrogz, Marley, Fanny Wang, Razer, Karl Kani, WESC, Turtle, JH, Dr.Dre/Beats/Solo, Ludacris/Soul, Koss, Skullcandy, Lady GaGa, Skullcrushers, Monsters nor Bose, because they are ALL seriously overhyped and overpriced "fashion blingbling gimmicks" with a very poor durability and sound quality, NOTHING else (and those who try to claim they are good do NOT know ANYTHING about QUALITY anyway!), BE THEM FAKE OR NOT! Also, please do NOT go for the overly thumping bass that only distorts everything else, focus on GOOD sound quality and durability IN GENERAL.2. What is the best pair of over-the-ear headphones?Panasonic Retro Headphones - (RP-HTX7-G1) *This model number is for the green ones which I have, There is also Red and White..and if you search online, Pink can be found* I bought these at Target on sale for $39.99 They are by far the best headphones that I've ever had. (And the cutest!) They are also very soft, and cushy so they do not hurt your ears. Regular price (At Target) Is $57.99, but they can be found online cheaper.3. What are the best over the ear headphones for sound quality and noise insulation?Well, according to hi-if afficionado Steve Gutenberg these headphones are THE best in the world:Abyss AB-1266 headphones run $5,495, but they are worth itNow, you can try on your Sony's, Sennheisers, AKG, Beyer etc but if you want some excellent headphones those are for mere paupers. Sell that new car back to the dealership and buy a runaround and make yourself truly happy... life is simple than you think!Qualifier:i do not sell audio equipment for a living, nor work in any aspect of audio. I use audio equipment at home. I do not own a pair of the above headphones because I know I will listen too much and too loud on them and so would finish off my hearing. Steve Guttenberg has been in audio a very long time and has been a professional reviewer for many many years. He has listened to probably many hundreds of headphones over the years (along with much other home audio equipment). I enjoy his YouTube channel as the shorts are just enough to watch each episode. I am not affiliated to Steve Guttenberg in any way.What are the best over the ear headphones for sound quality and noise insulation?
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