Frequent Answers and Questions About Air Purifiers

How did you come up with your list of recommended products?

At Air Purifiers America, we base our suggestions on a combination of clean air delivery rates, independent research and testing, and feedback from customers  who have used our products. Although we have analyzed data from all of sources to create our exclusive list of solutions, we encourage you to consider your specific situation when making your final air purifier choice.

Why are IQAir and Alen™ air purifiers rated so highly?

We have seen first-hand the performance of these products versus the competition and if you are serious about removing airborne particles from the air, IQAir and Alen™ produce premier air purifiers.  The performance is unmatched, however the only potential drawback is that IQAir's price is higher than most people can afford.  That is why we are offering the Alen™ A350 air purifier.  It performs at a comparable level to the IQAir at 98% particle removal rate and is priced at almost half the price of an IQAir HealthPro.

I've read that the Friedrich C-90B is the top rated air purifier, why is it not listed in the recommendations?

The Friedrich C-90B is a good model and Air Purifiers America used to carry this unit. However our customers' feedback suggests that it does not perform as well as the models we have listed in our recommendations for the specific indoor air quality concerns.  Many of our suggested models were not  included in the studies in which the Friedrich C-90 was rated highly.  

The Friedrich C-90B is an electrostatic air cleaner; our customers have reported three main drawbacks when using this type of unit:  

1. The electrostatic plates get dirty quickly, and unless cleaned weekly there is strong degradation in performance

2. The electrostatic process creates small amounts of ozone, which is a health concern and dangerous to the human body.

3. The ozone results in a musty smell that is objectionable to most customers.

4. The unit actually does a poorer job of removing particles from the air when operated at high speed

 Why isn't there a common metric for measuring the performance of all air purifiers?

We wish there was such a system.  The answer is that the manufacturers do not all agree on a common testing process and have elected to not have their products tested in certain studies.  That's why we have created these suggestions, which include the research that is available coupled with feedback from customers who have actually use these products.

We feel that the best air purifier should be able to remove a high percentage of particles from the air.  If you are allergic to pollen, dust or pet dander, the more of these particles are removed from the air, the easier you can breathe with less runny nose and itchy eyes.  That is why we rely so much on the particle meter to test these products.

Are there any other products that you recommend?

Additional Air Purifier Product Reviews and Recommendations

1. Air Purifier Reviews for Allergies and Asthma
2. Air Purifiers for Smoke and Odor Removal
3. Air Purifiers for Chemical and Gas Removal
4. Independent test results in home environments
5. What is the particle size of the allergens I am allergic to?
6. Shopping Consultant - select the best air purifier
7. Air purifier price to performance comparison
8. Why Buy from Air Purifiers America?