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Washable foam is a foam layer in the purification cycle that helps remove larger particles and is designed for easy cleaning. To clean the washable foam filter you just take it out of the unit and wash it with warm soapy water, rinse it with clean water and then hang it out to dry. You must make sure it is dry right through before placing it back in the air purifier unit.
The carbon filter inside an air purifier is there to reduce nasty odors and trap the larger particles from within the air.
Air purifiers are available to suit most room sizes. Locate the AHAM seal on the product packaging for the information detailing the appropriate room size for that particular air purifier. You may find that many air purifiers have their recommended room size information on or near the front of their packaging as well. Room size can range from 6′x9′ to 20′x24′ and are always related to the product AHAM test results.
So who is AHAM? …
AHAM is the abbreviation for the Association of Home Appliance Manufacturers. They are an organization which certifies results of tests performed on home appliances (i.e. dehumidifiers, refrigerators, air purifiers, etc.). External laboratories are used to test and rate various types of appliances. Their website link is: www.aham.org
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.
Whole house air purifiers are designed by manufacturers so that they can be installed in a air conditioning, central heating, or HVAC system. One of the major benefits of having a whole house air purifier is that they are completely out of sight because they literally become ‘part’ of the house. The filters for whole house air purifiers are found in a plenum or air-grille. Whenever your central systems fan starts up and moves the air around your home it will be doing so through the whole house air purifier filters thus cleaning most of the air in your home.
This is a great way to purify the air of your whole house with minimal disruption, however, not every household has a system already build in which can accommodate whole house air purifiers.
Before you purchase an air purifier you may be wondering why do we need air purifiers? …or do we really need air purifiers? I know I thought that before I got one.
This brief summary should help you understand why we really do need air purifiers and more so than ever today.
The indoor air in you average home is often polluted at a much higher level than the outside air. Here are a few facts about indoor air that are more than often not known:
So now you know. An air purifier is a product we should all be thinking about for a healthier way of living not just as a preventative for allergy and asthma sufferers.
What are ULPA filters?..
ULPA filters otherwise known as Ultra-HEPA filters are the next level of air purification efficiency up from HEPA filters trapping 99.999% of air particles 0.3 microns and less from the passing air including smoke, pollen and dust. As a comparison to ULPA filters a standard HEPA filter will remove 99.97% of air particles 0.3 microns or less.
So what is a micron?..
The airborne particles captured by an air purifier is measured in size by microns. One micron is about 1/25,400 of an inch or roughly 100 times smaller than the width of a human hair. These particles are invisible to the human eye and require special magnifying machinery to be able to see them.
So what exactly is HEPA?…
HEPA means: High Efficiency Particulate Air and is a technology that was developed by the U.S. Atomic Energy Commission during the 1940’s for the purpose of an efficient method of filtering radioactive particulate contaminants. HEPA is a very efficient filtration method which takes away microscopic particles from the surrounding air when it passes through the HEPA filter. HEPA filters span a variety of efficiency’s which depends on the size of particles. The top performing HEPA air purifier removes up to 99.97% of particles only allowing particles of a size of 0.3 microns or less through the filter. HEPA air purifiers are unable to remove chemical gasses from the air.
There are various different technologies available but in most cases this is how an air purifier works. First the polluted or ‘dirty’ air is sucked into the air purifier via its air intake. There are air purifiers that have a washable pre-filter right at the start of the process to help remove larger particles but this is not always the case. The air is then passed through a carbon filter which is used to eradicate odors and again take out larger particles from the air. Next the air is passed through a HEPA filter which is made up of tightly woven fibres and is where the smaller particles are removed. You may find some air purifier systems contain electronic ionizers to help remove even more particles. Finally the air is then pushed out back in to the room. Often the effectiveness of an air purifier can be greatly reduced by its inability to move air properly.
This is essentially the quick explanation of how an air purifier works.
Homes are usually built today with an aim to be energy efficient which in turn captures the air inside a house not letting it escape and be replaced with fresher air from outside. The purpose of which is to avoid loss of heat in the winter and heat gain during the summer months. Whilst this benefits your energy bills it is not so good for your indoor air quality and thus your health. You need to be able to allow your home to breathe which is being prevented by the way home are normally constructed. To help with this try to open many of your homes windows daily but also remember to lock & shut them if you go out. Of course this practice should be accompanied with an effective air purifier.
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