Filtrete 9803DC-6 Micro Allergen Reduction Filters, 1000 MPR, 20 x 25 x 1, 6-Pack

!±8± Filtrete 9803DC-6 Micro Allergen Reduction Filters, 1000 MPR, 20 x 25 x 1, 6-Pack

Brand : 3M | Rate : | Price : $70.49
Post Date : Jan 23, 2012 08:21:08 | Usually ships in 24 hours

FILTRETE TM MICRO ALLERGEN REDUCTION FILTERFor people who want to help reduce allergens. And microscopic particles from the air in their homes. 3M (MPR) Micro particle performance. Rating 1000. Captures large airborne allergens like household

• Outperforms fiberglass, washable and non-electrostatic pleated 1-Inch filters
• Carries a 1000 microparticle performance rating (mpr)
• Attracts and captures microscopic particles like smoke and smog and large allergens like mold spores and pollen from the air passing through the filter
• Lasts up to 3 months
• For residential use only

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Jeep Air Intake Winner: Installing an AIRAID Air Intake system

!±8± Jeep Air Intake Winner: Installing an AIRAID Air Intake system

www.4wd.com - You voted and the winning Jeep intake is the AIRAID air intake system. AIRAID air intakes provide up to 30% more airflow over stock, horsepower gain of 14, and torque gain of 24 lbs-ft. Plus, they're washable and reusable. Check it out as we install the AIRAID intake system on our 2010 Jeep JK. This contest has now ended but stay tuned for more great contests from 4WDJeepGiveaway.com.

Jeep Air Intake Winner: Installing an AIRAID Air Intake system

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The Ways An Air Conditioner Compressor Can Fail, and What To Do About It

!±8± The Ways An Air Conditioner Compressor Can Fail, and What To Do About It

Air conditioner compressors usually fail due to one of two conditions: time and hours of operation (wear out), or abuse. There are some failures that can occur elsewhere in the system that will cause a compressor failure, but these are less common unless the system has been substantially abused.

Usually abuse is a result of extended running with improper freon charge, or as a consequence of improper service along the way. This improper service can include overcharging, undercharging, installing the wrong starter capacitor as a replacement, removing (rather than repairing/replacing) the thermal limiter, insufficient oil, mixing incompatible oil types, or wrong oil, installing the compressor on a system that had a major burnout without taking proper steps to remove the acid from the system, installing the wrong compressor (too small) for the system, or installing a new compressor on a system that had some other failure that was never diagnosed.

The compressor can fail in only a handful of different ways. It can fail open, fail shorted, experience a bearing failure, or a piston failure (throw a rod), or experience a valve failure. That is pretty much the entire list.

When a compressor fails open, a wire inside the compressor breaks. This is unserviceable and the symptom is that the compressor does not run, though it may hum. If the compressor fails open, and following the steps here does not fix it, then the system may be a good candidate for a new compressor. This failure causes no further failures and won't damage the rest of the system; if the rest of the system is not decrepit then it would be cost effective to just put a new compressor in.

Testing for a failed open compressor is easy. Pop the electrical cover for the compressor off, and remove the wires and the thermal limiter. Using an ohmmeter, measure the impedance from one terminal to another across all three terminals of the compressor. Also measure the impedance to the case of the compressor for all three terminals.

You should read low impedance values for all terminal to terminal connections (a few hundred ohms or less) and you should have a high impedance (several kilo-ohms or greater) for all terminals to the case (which is ground). If any of the terminal to terminal connections is a very high impedance, you have a failed open compressor. In very rare cases, a failed open compressor may show a low impedance to ground from one terminal (which will be one of the terminals associated with the failed open). In this case, the broken wire has moved and is contacting the case. This condition - which is quite rare but not impossible - could cause a breaker to trip and could result in a misdiagnosis of failed short. Be careful here; do an acid test of the contents of the lines before deciding how to proceed with repair.

When a compressor fails short, what happens is that insulation on the wires has worn off or burned off or broken inside the compressor. This allows a wire on a motor winding to touch something it should not touch - most commonly itself a turn or two further along on the motor winding. This results in a "shorted winding" which will stop the compressor immediately and cause it to heat up and burn internally.

Bad bearings can cause a failed short. Either the rotor wobbles enough to contact the stator, resulting in insulation damage that shorts the rotor either to ground or to the stator, or end bearing wear can allow the stator to shift down over time until it begins to rub against the stator ends or the housing.

Usually when one of these shorts occur, it is not immediately a hard short - meaning that initially the contact is intermittent and comes and goes. Every time the short occurs, the compressor torque drops sharply, the compressor may shudder a bit visibly as a result, and this shudder shakes the winding enough to separate the short. While the short is in place, the current through the shorted winding shoots up and a lot of heat is produced. Also, usually the short will blow some sparks - which produces acid inside the air conditioner system by decomposing the freon into a mixture of hydrochloric and hydrofluoric acid.

Over time (possibly a couple of weeks, usually less) the shuddering and the sparking and the heat and the acid cause insulation to fail rapidly on the winding. Ultimately, the winding loses enough insulation that the inside of the compressor is literally burning. This will only go on for a few minutes but in that time the compressor destroys itself and fills the system with acid. Then the compressor stops. It may at that time melt a wire loose and short to the housing (which can trip your house main breaker) or it may not. If the initial cause of the failure was bad bearings causing the rotor to rub, then usually when the thing finally dies it will be shorted to the housing.

If it shorts to the housing, it will blow fuses and/or breakers and your ohmmeter will show a very low impedance from one or more windings to ground. If it does not short to the housing, then it will just stop. You still establish the type of failure using an ohmmeter.

You cannot directly diagnose a failed short with an ohmmeter unless it shorts to the housing - a shorted winding won't show up with an ohmmeter though it would with an inductance meter (but who has one of those?) Instead, you have to infer the failed short. You do this by establishing the the ohmmeter gives normal readings, the starter capacitor is good, power is arriving at the compressor, AND an acid test of the freon shows acid present.

With a failed short, just give up. Change everything, including the lines if possible. It is not worth fixing; it is full of acid and therefore is all junk. Further, a failed short could have been initially induced by some other failure in the system that caused a compressor overload; by replacing the whole system you also will get rid of that potential other problem.

Less commonly, a compressor will have a bearing failure, piston failure or a valve failure. These mechanical failures usually just signal wear out but could signal abuse (low lubricant levels, thermal limiter removed so compressor overheats, chronic low freon condition due to un-repaired leaks). More rarely, they can signal another failure in the system such as a reversing valve problem or an expansion valve problem that winds up letting liquid freon get into the suction side of the compressor.

If a bearing fails, usually you will know because the compressor will sound like a motor with a bad bearing, or it will lock up and refuse to run. In the worst case, the rotor will wobble, the windings will rub on the stator, and you will wind up with a failed short.

If the compressor locks up mechanically and fails to run, you will know because it will buzz very loudly for a few seconds and may shudder (just like any stalled motor) until the thermal limiter cuts it off. When you do your electrical checks, you will find no evidence of failed open or failed short. The acid test will show no acid. In this case, you might try a hard-start kit but if the compressor has failed mechanically the hard-start kit won't get the compressor to start. In this case, replacing the compressor is a good plan so long as the rest of the system is not decrepit. After replacing the compressor, you must carefully analyze the performance of the entire system to determine whether the compressor problem was induced by something else.

Rarely, the compressor will experience a valve failure. In this case, it will either sit there and appear to run happily but will pump no fluid (valve won't close), or it will lock up due to an inability to move the fluid out of the compression chamber (valve won't open). If it is running happily, then once you have established that there is indeed plenty of freon in the system, but nothing is moving, then you have no choice but to change the compressor. Again, a system with a compressor that has had a valve failure is a good candidate for a new compressor.

Now, if the compressor is mechanically locked up it could be because of a couple of things. If the compressor is on a heat pump, make sure the reversing valve is not stuck half way. Also make sure the expansion valve is working; if it is blocked it can lock the compressor. Also make sure the filter is not clogged. I once saw a system that had a locked compressor due to liquid lock. Some idiot had "serviced" the system by adding freon, and adding freon, and adding freon until the thing was completely full of liquid. Trust me; that does not work.

Should diagnosis show a clogged filter, then this should be taken as positive evidence of some failure in the system OTHER than a compressor failure. Typically, it will be metal fragments out of the compressor that clogs the filter. This can only happen if something is causing the compressor to wear very rapidly, particularly in the pistons, the rings, the bores, and the bearings. Either the compressor has vastly insufficient lubrication OR (and more commonly) liquid freon is getting into the compressor on the suction line. This behavior must be stopped. Look at the expansion valve and at the reversing valve (for a heat pump).

Often an old system experiences enough mechanical wear internally that it is "worn in" and needs more torque to start against the system load than can be delivered. This system will sound just like one with a locked bearing; the compressor will buzz loudly for a few seconds then the thermal limiter will kill it. Occasionally, this system will start right up if you whack the compressor with a rubber mallet while it is buzzing. Such a system is a good candidate for a hard-start kit. This kit stores energy and, when the compressor is told to start, dumps extra current into the compressor for a second or so. This overloads the compressor, but gives some extra torque for a short time and is often enough to make that compressor run again. I have had hard-start kits give me an extra 8 or 9 years in some old units that otherwise I would have been replacing. Conversely, I have had them give only a few months. It is your call, but considering how cheap a hard-start kit is, it is worth trying when the symptoms are as described.

And this, in a nutshell, is what can happen to an air conditioner compressor and what you can do about it.

The Ways An Air Conditioner Compressor Can Fail, and What To Do About It

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Grapes, Nuts, and Your Dogs Health - Foods that Fido should Avoid

!±8± Grapes, Nuts, and Your Dogs Health - Foods that Fido should Avoid

"Magoo was a big, playful Labrador retriever who often got himself into sticky situations..."

So begins a story in the latest report from the ASPCA on foods that may be toxic to dogs. It turns out that Magoo got into the pantry and snagged himself about a pound of raisins. He ate the whole thing, of course.

The ASPCA never mentions Magoo's fate. But they do tell us that as little as a handful of raisins can impair a dogs health and has been fatal for some. Ditto for the grape.

Who Knew?

Growing up, I regarded our family dogs as "the first cycle of the dishwasher". They were good about waiting their turn for whatever we left on our plates, and we weren't too concerned about offering them "people food". It never crossed our minds that our dogs health could be affected by a few measly table scraps. What was safe for us, we figured, was safe for our pets.

What's more, whenever I ate grapes, I liked to give one or two to our German Shepherd "Tiffany". The grapes always popped out of her mouth when she tried to bite into them and Tiffany, ever the good sport, refused to give up until she'd squashed each one into submission. It guaranteed at least 60 seconds of harmless fun.

Tiffany was also fond of chewing gum (she chewed it -- wrapper and all -- but didn't swallow it!) We had the sugarless kind, which is often sweetened these days with xylitol.

Little did I know that I might have been poisoning our family pet! (More on xylitol below).

Why are grapes harmful?

As far as grapes and raisins go, no one is sure why they're harmful. It's been confirmed that even grapes grown without fertilizers or pesticides can be toxic to dogs. But not to every dog, and not every time. It's also not known whether small amounts eaten over a long time period could have a cumulative effect.

What we do know is that the end result in nearly all reported cases of grape or raisin toxicity is acute kidney failure. (The term "acute" means that the condition is severe and comes on quickly.) The dog ultimately can't produce urine, which means they can't filter toxins out of their systems -- a process essential to life.

During the twelve-month period in which the effects of grapes were studied, the ASPCA Animal Poison Control Center handled 140 cases involving one or more dogs. Over a third of the dogs developed symptoms ranging from vomiting to kidney failure, and seven dogs died. The ASPCA based their study on reported cases, so naturally there may be cases where a dogs health is entirely unaffected by eating grapes. But until they know all the facts, the Society advises against feeding pets grapes or raisins in any amount.

An ounce of prevention

So, your dog just scored himself a big box of raisins. What's a pet owner to do?

The first line of defense, if the grapes or raisins were eaten recently, is to induce vomiting and administer activated charcoal (it absorbs toxins in the GI tract). Vomiting is also the first sign that your dog is in trouble, so skip right to the activated charcoal if vomiting has already occurred. (In a pinch you can make your own activated charcoal by charring a piece of toast until it's blackened and crumbles easily.) Then call your vet right away.

Can't reach the vet? Call ASPCA Poison Control: 888-426-4435

The vet will keep your dog on intravenous fluids for at least 48 hours and monitor blood chemistry daily. Normal blood work after 3 days usually means your dog is in the clear.

Keeping a watchful eye out, of course, is the best way to keep your pet out of trouble. Like children, dogs (and other pets) have a knack for getting into mischief when we're not looking.

It's Not Just the Grapes...

There are other foods your dog should be kept away from, and some of them may surprise you.

Here are some other foods that can put a dogs health in harms way:

Chocolate

Who can resist chocolate? Like it your not, your dog.

Chocolate is made with cocoa beans and cocoa beans contain a chemical called Theobromine, which is toxic to dogs. Different types of chocolate have varying effects on dogs health. Dark chocolate has the largest theobromine, coming in at a whopping 450mg (compared to 1mg for white chocolate). So on Valentine's Day, you're actually being kind to your best buddy if you eat all the chocolates yourself!

Cocoa Mulch

Cocoa bean shells are a by-product of chocolate production (which is how mulch made it into the "foods" category) and are popular as mulch for landscaping. Homeowners like the attractive color and scent, and the fact that the mulch breaks down into an organic fertilizer. However, some dogs like to eat it and it contains Theobromine.

Fatty foods

Fatty foods are hard for a dog to digest and can can overtax the pancreas, leading to pancreatitis. This can threaten your dogs health and is potentially fatal.

Nuts

Macadamia nuts should be avoided. In fact most nuts are not good for a dogs health since their high phosporus content is said to lead to bladder stones.

Mulch

Mulch isn't food, but there's one type tempting enough for dogs to eat. Some dogs are attracted to cocoa mulch, and will eat it in varying quantities. The coca bean shells can contain from 0.2% to 3% theobromine (the toxin ) as compaired to 1-4% in unprocessed beans.

Onions

Onions, especially raw onions, have been shown to trigger hemolytic anemia in dogs. (Stephen J Ettinger, D.V.M and Edward C. Fieldman, D.V.M. 's book: Textbook of Veterinary Internal Medicine vol. 2 pg 1884.) Stay away from onion powder too.

Potatoes

Potato poisonings among people and dogs are rare but have occurred. The toxin, solanine, is poorly absorbed and is only found in green sprouts (these occur in tubers exposed to sunlight) and green potato skins. This explains why incidents seldom occur. Note that cooked, mashed potatoes are fine for a dogs health, actually quite nutritious and digestible.

Artificial Sweeteners

Xylitol is used as a sweetener in many products, especially sugarless gum and candies. Ingesting large amounts of products sweetened with xylitol may cause a sudden drop in blood sugar in dogs, resulting depression, loss of coordination, and seizures. According to Dr. Eric K. Dunayer, a consulting veterinarian in clinical toxicology for the poison control center, "These signs can develop quite rapidly, at times less than 30 minutes after ingestion of the product" states Dr. Dunayer, "...therefore, it is important that pet owners seek veterinary treatment immediately."

Turkey

Turkey skin is currently thought to cause acute pancreatis in dogs, partly due to it's high fat content.

Other foods listed by the ASPCA as harmful:

Alcoholic beverages

Avocado (the only "fatty" member of the vegetable family)

Coffee (all forms of coffee)

Moldy or spoiled foods

Salt

Yeast dough

Garlic

The Bottom Line

Thanks to a more educated public, fewer fatalities from foods like chocolate are being reported these days. But it's important to keep up with what's currently known about foods and their effects on dogs health. Grapes and cocoa mulch, for example, were only discovered very recently to have harmful effects.
Check frequently with sources like the ASPCA, or sign up for the "Cold Noses News" and we'll keep you informed. (You'll also get a bunch of cool dog stuff along with your free registration).

Of course, being alert and getting your pet to the vet promptly will help assure a happy outcome if something unfortunate should happen.
Here's to your dogs health and good nutrition!

Grapes, Nuts, and Your Dogs Health - Foods that Fido should Avoid

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HEPA Vs. HEGA Filters - What's the Difference?

!±8± HEPA Vs. HEGA Filters - What's the Difference?

Many of us retreat to our homes for security and relaxation, only to find that our senses are constantly being attacked by a variety of asthma and allergy-related culprits.

The EPA has repeatedly warned the public of the dangers of poor indoor air quality, and unfortunately, even the most immaculate home can be teeming with pollutants. Virtually every home is affected by indoor particulates, and this is especially true if your home was built in the last 20 years or so, as energy-conservation efforts enacted in the 1970s required homes to be built especially air-tight. Common sources of indoor air pollutants can include dust, carpet, furnishings, household cleaning products, pets, and cigarette smoke. Unfortunately, exposure to these contaminants can result in a range of health problems such as asthma, allergies, respiratory disorders, and even cancer.

One way to combat these airborne irritants is to use a high-quality air purifier to clear the air. Air purifiers can also help remove vapors from carpets and textiles, cleaning products, and other pollution particulates that can jeopardize your health.

Studies have shown that clean air helps you sleep better and breathe easier, and looking for an air purifier may seem confusing at first. One of the most effective ways at controlling particulates is through the use of a high-efficient particulate filter, but finding the right kind of filter can even be difficult. Two popular types of air filters are HEPA and HEGA, and while these two terms may seem interchangeable, they are also quite different, as they are used to filter out different types of pollutants.

HEPA technology has been around since the 1930s and is essentially a type of filter media that allows air to pass through. This type of filter is highly efficient at particle abatement, and is 99.97% effective in capturing particles 0.3 microns or larger (including common pollutants such as dust, hair, dander, and pollen). HEPA technology was originally developed by the Atomic Energy Commission to create clean and safe environments for troops, researchers, and scientists.

Because of a HEPA filter's ability to remove particles from the air, it is the most common method of air purification. When purchasing an air purifier with HEPA filtration, look for True HEPA filters, as these must pass independent tests and perform at a certain standard to receive the distinction of a True HEPA filter. Also, when deciding on a HEPA air purifier, pay close attention to the filter's construction. Warm-rolled HEPA filters are best, as these are not prone to cracking, and air purifiers utilizing warm-rolled and pleated HEPA filters also increase filtration efficiency.

On the other hand, HEGA filters serve a different purpose. HEGA stands for High Efficiency Gas Absorption, and this type of filter was developed about a decade ago by the British Army as a defense against chemical warfare. HEGA filters are composed of a carbon cloth and are considered to be many times more efficient than granulated activated carbon at adsorption of gaseous pollutants, chemicals, and odors. Because of their efficiency, light weight, and easy workability, air purifiers with HEGA filters are now becoming more popular, especially in air purifiers geared towards allergy, chemical, gas, and odor control. In fact, some air purifiers even use HEGA filters in combination with HEPA filters to provide complete air purification.

Therefore, by choosing a HEPA or HEGA air purifier, you can rest assured that you will get the same purification technology used by the government and have complete and thorough filtration of particulates, gases, and VOCs.

HEPA Vs. HEGA Filters - What's the Difference?

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