What To Consider When Buying an Air Purifier


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It’s easy to become overwhelmed when you are looking to buy an air purifier as there are hundreds of different brands and models all promising to do the best job. Regardless of the promises, there can be huge differences in relation to quality, durability, power and functions between different air purifiers.

So when you are considering buying an air purifier, you need to look beyond the flashy marketing and hype to see what each model actually delivers. This is why speaking to and buying from an air purifier specialist is important to find the correct product for your specific situation.

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 filter out the microscopic airborne particles and microbes that can cause allergies, asthma, skin irritations and a host of other conditions. A clean, and properly maintained HEPA filter will filter out dangerous particles smaller than 0.3 microns. For comparison, visible dust is usually between 5 and 20 microns in size. If an air purifier does not have a good HEPA filter it won’t do much to remove those most dangerous particles so they will still circulate in the air.

Beware in your search for an air purifier, as some are designed to be cheap so you could end up spending a lot of money over the long term, on poorly designed / low quality replacement filters that don't really do an effective job. And that's if the machine itself lasts long enough.

A HEPA filter alone, is not really enough as they can only filter out particles so you want an air purifier that has multiple filter stages with different filter technologies for various pollutants.

You want to make sure that your air purifier also has a solid pre-filtering system. The better 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.

Another essential filter to have in your air purifier is an Activated Carbon filter. The high grade organically based granulated activated carbon filters are generally the best ones to have in your system.

Other filter options could be sanitising style filter technologies such as UV-C or PlasmaWave. Great for germs and some viruses.

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 to find out more.


Article last updated:  2020-03-15T11:20:00+10:00

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