Air Purifier Information And Reviews

We guess that you have seen a few air purifiers online and are a little confused by the terms, uses, and maintenance to name a few… This is where we can give you a helping hand!

We will explain in simple language, all you need to know about air purifiers, jargon, and uses. My aim is to save you time and energy in your search for an air purifier that suits your needs. If you would like to check out some different models, click on this link to amazon. Otherwise please read on to find out everything you need to know
about air purifiers…

Why Buy An Air Purifier?

An air purifier can be an effective solution if you are suffering from allergies related to airborne contaminants like dust, mold, or pet dander. They are also great for asthma sufferers and removing smoke. Air purifiers can provide relief in the home or office, as well as if you are living in a heavily polluted environment. Some people simply buy them to remove odors related to the building they are living in.

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There may be a number of reasons for looking at air purification. But the bottom line is, you are looking to decontaminate an area for the sake of your health and wellbeing. People who have bought air purifiers have reported a decrease in symptoms relating to airborne contaminants. There are a number of things to consider before you make a purchase. It is very important to have an air purifier that is suited to the space you are buying it for! So please read on to find out everything you need to know about air purifiers…

What Are The Important Features?

Area Coverage

Air purifiers are designed so that they decontaminate a certain area. This is measured in square feet. For example, an Austin Air Healthmate Junior will cover an area of up to 700-sq ft. When you are looking at air purifiers, the first thing you need to do is to figure out how big the area is that you want to decontaminate.

In their reviews, some customers have said that they regretted not buying an air purifier that covers a larger area. This is a common mistake made when buying air purifiers…

Measuring The Space And Accounting For Furniture

Another thing that you need to consider is what is in the space you want to decontaminate. Is it a room that has a lot of furniture or appliances that take up space. We will continue with the example of the Healthmate Junior, which covers an area up to 700 square feet.couch

An air purifier is given a number of square feet that it can work effectively in. But this figure does not take into account the furniture and other things that can clutter the area. The number of 700 square feet is a figure that assumes a room is empty. So the air purifier will not be as efficient if the room is not. This principle is the same for ALL air purifiers.

In this instance, a space of 550 square feet with a lot of objects cluttering it up, may be the same for an air purifier, as a 700 square foot room that is empty. This all depends on what objects are in the room and how much space they take up.

So remember to take into account how much furniture is in the area when you are considering an air purifier for a specific room. It is always better to look for an air purifier that will cover a larger area! That way you will have effective air purification, as well as be able to use a lower setting to save on energy costs, and produce less noise.

Clean Air Delivery Rate

You may come across the CADR rating when you are looking at different air purifiers. This stands for Clean Air Delivery Rate. It is a number that reflects the cubic feet per minute that an air purifier can decontaminate a certain area. Air purifiers must be tested by the Association of Home Appliance Manufacturers (AHAM) to get this rating.

The numbers go from around 50 to 450. The higher the CADR rating, the quicker the filter will remove airborne contaminants. So if an air purifier has a CADR rating, then this will show you how effective it is at decontaminating the area that it is designed for.

There are three numbers that you will see with a CADR rating: Dust, Pollen, and Smoke. For most machines, the numbers will be very similar for all three. For example, 180 for dust, 185 for pollen and 180 for smoke. Some brands refuse to participate in CADR testing because they believe that it is biased toward certain types of filters… This does not necessarily mean that they are an inferior product. But just do your research if this is the case.

HEPA Filters

A term that you WILL come across when you are looking at different air purifiers is HEPA. This refers to the type of filter that the air purifier uses. A HEPA filter must be able to remove 99.97 of particles 0.3 microns or bigger. Just to give you an idea of how big that is, a smoke particle is 1 micron. So this type of filter can remove decontaminants one-third the size of a smoke particle.

Generally, air purifiers with a HEPA filter are considered to be the best! All of the highest quality brands use them. So keep an eye out for HEPA-type filters, or 99%-HEPA, because they do not need to meet the same standards as a True-HEPA (regular HEPA) air purifier.

For a company needs to pass independent tests to be able to label their product HEPA. This is done by the United States Department of Energy. If you would like to learn more about HEPA filters, please read my article Everything You Need To Know About HEPA Air Purifiers. This piece covers all the main features of HEPA air purifiers and their uses.

What Are Air Purifiers Generally Used For?

There are a number of things that an air purifier can be used for. The main reasons are allergies, pets, smoke, asthma, and dust. But people use them for pollution relief, to remove smells, or if you are like me, for relief from sinus problems.


Problems related to allergies are one of the main reasons to buy an air purifier. These machines can provide relief from the symptoms of allergies and asthma. If you find a good air purifier that suits your living space, it will remove most of the pollen and dust in the area. Many customers have reported that they have had a massive reduction in allergy symptoms after buying an air purifier.


Whether you are a smoker, have a very active kitchen, or are living with other kinds of smoke, air purifiers can remove smoke particles very effectively. Air purifiers can virtually eliminate second-hand smoke from your home. For some people the health risks associated with this are their main concern, for others, it is just the smell.


Pets are great household companions but can cause a number of problems with airborne contamination. Pet dander can trigger allergies and create an unhealthy living environment. This is another thing that air purifiers are effective in removing. Whether or not you are allergic to the pet in your home, and air purifier will decontaminate the air, so that this health risk is neutralized.

Things To Consider?


Air purifiers need to be maintained to continue to run effectively like most appliances. The maintenance on an air purifier is usually the replacement and cleaning of filters.

Filters can be replaced anywhere from every few months to 5 years. It depends on the product and how they are designed. It is important to take this into consideration before you buy because this can be costly!

Things to look for are: How often the filter needs to be replaced, how much they cost, and how many filters does the air purifier have. Sometimes they are fitted with a pre-filter to collect the larger particles. So that may need to be replaced as well.


ALL air purifiers will make some amount of noise… This is something that you can count on. Some will make more than others, and this also depends on the setting you use.

As a rule of thumb, the higher the setting, the more noise an air purifier will make. You can keep it running on a medium or lower setting to cut down on noise if you buy a model that covers a larger area. Sometimes you can set the air purifier on high until the air is decontaminated, then just run it on medium or low to maintain that level of clean air.

For some people this is a small concern, for others, it is a big deal. So you will need to take into account if you are sensitive to noise in your home or office. If you are particularly sensitive to noise, then Blueair air purifiers have the HEPASilent range. Their filters are specifically designed to reduce the amount of noise that the air purifier makes.

Ozone Producing Air Purifiers

Some air purifiers use ionic filters to trap airborne particles. This was seen as an effective way to decontaminate a living space in the past . However recently there has been some concern about the amount of ozone that these purifiers produce.

We consume ozone naturally in the air that we breathe. But too much of it can be bad for our health. So it is important to find out if an air purifier produces excess ozone before you buy. If so, then we would steer clear! But remember, not all ionic filters will produce excess ozone…

What Are The Major Brands?

While there are many brands to choose from, there are three that for me stand out as the best value for money: Idylis, Blueair, and Austin.

Idylis Air Purifiers

Idylis air purifiers cater to the lower end of the market. They are known for having high CADR ratings for the price they are sold at. The air purifiers don’t have the fancy gadgets of the more expensive models, but they deliver where it counts!

They are fitted with HEPA filters, cover a decent area, and efficiently filter air. For basic air purification, Idylis are an excellent choice!

Blueair Air Purifiers

Blueair are a Swedish based company that is innovative in their designs and technology. Their main feature is the HEPASilent filter. This is a filter that runs at a low level of noise and removes 99.97 of airborne contaminants larger than 0.1 microns. That is around 1/3 smaller particles than a regular HEPA.

They are used in US Embassies in India and China, where pollution is high. They are at the higher end of the market, but provide quality air decontamination!

Austin Air Purifiers

Austin air purifiers are an American company based in Buffalo, New York. All of their air purifiers are made in the United States. These air purifiers cover a very large area! At the cheapest model, the Austin Air Healthmate Junior covers 700 square feet. They are designed to decontaminate to the level of a hospital clean room.

All Austin air purifiers come with a 5-year warranty for the machine and the HEPA filter. Another higher end product, but great value for money!

Best HEPA Air Purifier: Buying Guide

Final Thoughts

We hope this page has helped you to learn everything you need to know about air purifiers. Whether you are suffering from allergies, smoke inhalation, mold or another contaminant, an air purifier is a great solution! Just remember to do your research before your buy.

Measure the amount of space that you need to decontaminate, check if the air purifier is suited to the specific contaminant you want to get rid or, and read reviews to see what the good and bad point of the air purifier are. You can start your search at amazon. There are great air purifiers available in the online store, and you can read reviews and popular questions about the product you are looking for.

This website is supported by readers. As an Amazon Associate we earn from qualifying purchases.

Feedback will be appreciated comment section below.

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