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Choose The Right Air Purifier: A Step By Step Guide

By Dan Wilcox

If you are looking for an air purifier you probably want it for a reason. This fact is important to remember when choosing your machine. But with so many air purifiers on the market how do you make the right choice? It can be very confusing as they all have something different to offer.

You will need to know why you want one. Do you need it for allergen removal, virus removal, odour or gas removal? What you want to achieve will guide yo as to which one you will buy. If you need to clear the air of allergens then you need an air purifier that can filter large particles such as pollens from the air (usually via a prefilter), and also the smaller particles. These smaller particles are those molds, bacteria, fumes, dust mites etc that people tend to be allergic to. Normally a HEPA filter will be sufficient for this job. It is important to note that there are smaller particles again that are known as lung penetrating particles and are the most harmfull to your wellbeing. These include viruses, some bacteria and germs, some home dirt mite allergens, cat allergens, smoke, soot, fumes, and smog.

When dealing with allergies you need to look at the sensitivity and severety of the reaction. This will giude you to the right air purifier for you. It is not simply, “I have allergies and therefore I need the biggest and strongest machine”. You will end up pay too much for what you really need. For example, people will vary in the severity of the reaction to say dust mites. If you dont have a strong reaction to dustmite then why would you fork out a lot of money for the stronger machine when the smaller and much cheaper oone will be sufficient? Having said this you will still need to be mindful if you have say aesthma. In this case you would want to avoid the triggers such as gases and odours. In this case it’s recommended they purchase an air purifier with a gas filtration system to manage gases and odors more effectively.

So, having decided on the type of air purifier – having picked the machine that will siut your physical need, you will also have to consider some other things. Such as the location you will put it in. If it is going into your bedroom then most likely you will want to get a quiet machine. But if it will be in a high traffic area then a stronger machine will be required. This would also necessitate a machine that makes more noise.

Now you need to judge the effectiveness level of the machines and compare them. Do this by refering to the manufacturers specs. Check for the amount of air the air purifier can clean in an hour. Look also for the percentage of pollutants the machine can remove as the air passes through. For instance, if the particle count per cubic foot of air going into the air purifier is 1,000,000 and the count of particles in the air coming out is 300, than the efficiency from that machine would be 99.97%. Higher is better.

To continue to be effective the air purifier requires clean filters. But the particles are so small you may not be able to see if the machine is still working effectively. Dates are not accurate and if you rely on dates alone you may find you are changing filters unnecessarily. Some machines have a light o indicate when the filter needs changing. Very handy indeed.

There are still a few other things you need to compare, such as the mobility and weight of the machine, very important if you intend to move it around a lot. You will also want to compare warranty and the reliability of the machines. We recommend machines using the media charged filters as they are highly effective and dont emit ozone.

Before you buy anything online, make sure you check Dan Wilcox’s excellent Air Purifier Reviews, and Air Purifier Blog.

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Topics: Allergies/Asthma | Comments Off

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Article Citation
MLA Style Citation:
Wilcox, Dan "Choose The Right Air Purifier: A Step By Step Guide." Choose The Right Air Purifier: A Step By Step Guide. 1 Jul. 2010. 3 Aug 2014 <>.

APA Style Citation:
Wilcox, D (2010, July 1). Choose The Right Air Purifier: A Step By Step Guide. Retrieved August 3, 2014, from

Chicago Style Citation:
Wilcox, Dan "Choose The Right Air Purifier: A Step By Step Guide"

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