The Importance of HEPA Filters in Your Home

The HEPA air filtration standard requires that 99.97% of airborne particles larger than 0.3 microns be removed from the air by constant filtration. HEPA stands for High-Efficiency Particulate Arrestance, and it is no surprise by the large amount of airborne contamination a HEPA filter traps that it is the highest standard in meeting air quality requirements in both industrial and household settings.

Once dust, contaminates and particles are trapped in a HEPA filter, they are locked in and will not re-enter the air. The only way to remove the caught particles is by removing the filter and washing it. Periodically washing and maintaining your HEPA filter will ensure it can continually be used to trap a high number of air particles. Without cleaning the filter regularly, especially after using in a highly polluted environment, the HEPA filter cannot successfully capture the 99.97% of airborne particles.

HEPA filters are environmentally friendly and will not emit any harmful bi-products into the atmosphere. Other types of air filters, such as ionic air filtration systems, release ozone as they process airflow. Using a HEPA filter will ensure that you are not breathing in or releasing any harmful materials or chemicals.

In home use, HEPA filters can be found in vacuum cleaners, furnaces and air conditioning systems. There are also some floor-fan models that employ HEPA technology to filter the air as it is circulated throughout your house. Some in-home air purifiers and humidifiers also use a HEPA filtration system to remove unwanted particles and toxins from the air in your home.

It is imperative that you create a healthy environment for you family by regularly keeping up with the maintenance and cleaning that go along with using HEPA air filters. Be sure to look after any appliance that uses filters, especially furnaces and air conditioners. It is recommended you change those filters at least once every two months to ensure maximum filtration in your home's airflow.

An improved air quality standard in your home can be beneficial to your health. If you suffer from allergies, you know the importance of breathing air free of pollen, dust, pet dander and other irritants. A HEPA air filtration system can remove those particles from the air at a greater efficiency than other filters and improve your quality of life.

It is important to mention, also, that some products on the market today claim to be "HEPA Type" or "HEPA Like". These filters do not remove 99.97% of harmful airborne particles with a diameter larger than 0.3 microns. They can remove as much as 95%, which may sound like a significant number, but can be misleading especially if you are prone to allergies or are using the filter in an environment with a lot of airborne contaminates.

Use HEPA technology to virtually eliminate and trap all airborne particles from entering the airflow of your home. You'll immediately notice the difference.

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A Thumbnail Sketch of the Importance of Speaker Stands

Audio visual enthusiasts know that getting the right stand for their speakers can be as important as getting the right speaker. Speakers can only give their best results when they are placed correctly and are able to sit without any unnecessary movement.

Speakers are not designed to transmit sound through stands so stands need to be sturdy. A good stand should isolate the speaker from the floor and the floor from the speaker. Some stands have spikes on their feet which help to give added stability and to reduce the surface area of the stand that touches the floor. Furthermore, the added rigidness that spikes provide will help the performance of the woofer However, floor-standing speakers should not use spikes unless necessary. Spikes (or any other rigid floor coupling) increase the amount of vibration transferred between the floor and cabinet in both directions. By all means, use spikes if you need to increase static friction and prevent lateral movement of the speakers but consider using rubber bumpers to decouple the speaker from the floor.

Counter intuitively, "Bookshelf" speakers do not sound good if placed in a bookshelf as some might think. Obviously, speakers are designed to only produce sound through the front but they will also produce sound through whatever they are placed on or near.

As a general rule, speaker stands should be rigid to stop any unnecessary vibration and have as little contact with the ground as possible to stop sound being passed through anything but the air. Speaker stands should also be stable for more practical purposes: speakers are expensive and f you have children or animals running around, you do not want your speakers to fall off and break. Speakers stands should have some mass to them as a high-mass stand will stop your speakers from moving unnecessarily.

Ideally, the stand should bring the speaker's tweeter to ear level. If you sit down when listening to music, ensure that the stand is around 3 feet tall. As well as being better placed by the tweeter, the stand will have the effect of improving lower frequency sound thus giving you a better all-round sound than you would have without.

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