Top 5 Things to Consider When Buying an Air Purifier
We’re gratified by the reception of our Allergy Relief Workshops, and want to thank everyone who took the time to come by. We also want to thank Herman Pihltrad, president of Blueair US, for a really informative presentation on portable air purifiers and indoor air quality.
For those of you who missed the workshops, here’s a summary of the top 5 things you need to consider when choosing a portable air purifier.
1. Filter Performance
One of the best ways to compare air purifier performance is by using the Clean Air Delivery Rate (CADR), a measure of how well a system removes pollutants from the air developed by the Association of Home Appliance Manufacturers. The higher the CADR test numbers, the better the unit cleans indoor air. (There’s more about CADR in our glossary.)
If you buy an air purifier too small for the room it’s used in, it won’t do the job. If the capacity is more than you need, then you’re not just paying more for the machine, you’re paying more to run it. So measure the size of the room before you start shopping. And don’t forget that ceiling height affects the total volume of air in a room. If you have a ceiling higher than the standard eight or 10 feet, you may need to go a size higher than the rating on the box.
3. Operating Cost
Know the manufacturers’ recommended filter replacement schedule and the costs of the filters, and don’t be automatically turned off by higher costs. Generally, the more effective units cost more to maintain, since their filters are of better quality and thus more expensive. Also check the energy efficiency rating to get an idea of what your electrical cost will be over time.
4. Ease of Use
Some air purifiers require heavy lifting or special tools to replace filters. Others just require a simple lift out-drop in filter change. Some, such as air washers, require special additives and regular cleaning. Understand the maintenance requirements of the units you’re considering – as well as what you’re willing and capable of doing – before you buy.
A warranty is both an indication of quality and a statement of confidence by the manufacturer. A good air purifier is a complex machine, and a short warranty means the manufacturer doesn’t believe the machine will last without need repairs of some sort. The better manufacturers offer warranties ranging from three to five years.
Still have questions about how to select a air purifiers? Take a look at our article on the subject. Or call 888-205-3228 and talk to one of our experts. We’re happy to help!