Beginner’s Air Purifier Buying Guide: Your Questions Answered

When you’re first looking at buying an air purifier, there are many questions you may have about how they work and which one is right for you. To help you get started, we’ve put together a list of some of the most common air purifier FAQs for first-time buyers. Here are some of the basics you need to know to get started.


  Do All Air Purifiers Use the Same Type of Filters?


No. Some air purifiers use HEPA filters, while others use activated carbon. HEPA filters capture particles in the air, while activated carbon will capture odors, gases and VOCs. In addition, there are certain air purifiers that use both of these filter types for broad-spectrum protection. In some cases, air purifiers will also include a UV germicidal lamp to eliminate viruses and bacteria from the air.


  Should I Run My Air Purifier 24/7?


Generally speaking, yes. Keeping an air purifier running at all times will help to ensure optimum air quality and prevent the buildup of contaminants while the machine is off. For more information, you can check out our dedicated blog post on the subject.


  Will My Air Purifier Affect Temperature or Humidity Levels?


No. While we offer a complete line of portable air conditioners and humidifiers, an air purifier will not change the temperature or moisture content of your home air. Using one will only remove impurities from the air, not change any of its other characteristics.


  Do Air Purifiers Cost a Lot to Run?


On the whole, air purifiers are fairly inexpensive in terms of energy costs. Electricity consumption does vary from one unit to another, but most air purifiers these days are energy efficient enough not to severely impact your electrical bill. Several models we sell here are even Energy Star Certified for maximum efficiency. For a more specific breakdown of the costs, check out our blog post on air purifier electricity use.


  What Do the Square Footage Ratings Mean?


Whenever you look at an air purifier online, you’ll see a square footage measurement listed with it. Unless otherwise noted for multiple air changes, this is usually the maximum space in which the unit can completely cycle the air once every hour. Keep in mind that this rating is calculated for spaces with standard 8-foot ceilings, so the area will be a bit lower if you have unusually high ceilings.


  How Often Do I Need to Change Filters?


The answer to this depends on the unit you’re using. Every model comes with its own recommended filter change intervals to keep it running at maximum capacity. If you need help keeping track, though, you can use our filter change reminder tool to receive notifications when it’s time for your next filter change.


With these basic questions out of the way, you’re ready to start comparing different air purifier options to find the best unit for your home. For further information, you can check out our complete FAQs page or contact us directly for personal answers and product recommendations based on your unique needs.