What To Consider When Buying an Air Purifier


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It’s easy to get overwhelmed when you are looking to buy an air purifier. There are hundreds of different makes and models on the market. All of them promise to do the best job. However, there is a wide variety of quality, durability, and even function in the different air purifiers. When you are considering buying an air purifier you need to look past the marketing hype and see what each model actually delivers.

HEPA Filters and Pre-filtering

One of the key features you want to examine in an air purifier is its HEPA filter. This is the main filter of the device. Its job is to screen out the microbes and microscopic particles that can cause allergies, asthma, and a host of other conditions. A clean, and properly maintained “True HEPA” filter will block particles as small as .3 microns. For comparison, dust is usually between 5 and 20 microns in size. If an air purifier does not have a HEPA filter it won’t do anything but make things look cleaner. It will still let a lot of environmental toxins circulate in the air.

But, a HEPA filter alone is not enough. A HEPA filter can quickly become overwhelmed with large particles, making it useless. Some air purifiers are designed to be cheap so that you will have to spend a lot of money on specially designed replacement filters. You want to make sure your air purifier also has a solid pre-filtering system. Some elements of a strong pre-filtration system are a carbon filter and a permanent pre-filter. The stronger the pre-filtration system is, the longer your HEPA filter will last and the better job your air purifier will do keeping the air clean.

What Are Your Biggest Concerns?

Everyone has different sensitivities. Some air purifiers are better at stopping some toxins than others. When looking to buy an air purifier make sure you get one that is designed to catch the contaminants you are most sensitive to. Some purifiers do a better job filtering out allergens like pet dander, human hair and dust while others are better for filtering out even finer particulates.

Some brands of air purifiers also offer special filter options for smoke, odours, or antimicrobial concerns. Even if you buy a high quality air purifier, it won’t be as effective for you as it should be if it is not designed to filter out the environmental contaminants that bother you the most.

Operating Costs

An air purifier should be something you plan on owning for a long time. You want to make sure you are spending your money wisely. Consider how much energy the air purifier will use. Is a single air purifier powerful enough to clean your space? Air purifiers all come with a recommend usage area. If your room is larger than this area, you will need a higher capacity model or more than one air purifier.

You will also want to know how much it costs to buy new filters. You may be able to save money by cleaning the pre-filtration system yourself. It is critical that the main HEPA filter and any pre-filters are kept free of debris and build up. Otherwise the contaminants will not be filtered properly and stay in the air. The purifier will also be working harder than it needs to.

You want to look at the length of the warranty. Because air purifiers can be expensive, you want to make sure you are protected if something unexpected goes wrong. Depending on your needs, you may be running the air purifier nearly all the time. Will the machine hold up over several years or you will you need to replace It frequently?

Buying an air purifier is like buying a car. You can’t believe all the marketing hype. You need to do your own careful research and make sure your air purifier has everything that is important to you and your family.

Want to learn more about Air Purifiers and the different filter technologies? Then check out our Air Purifier Buying Guide written especially for Australians. click here

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