Using an air purifier is a great first step toward transforming your indoor air. Here's a few things that you can do to master your air purifier. 

We recommend using these guidelines to receive the greatest benefit from am Alen Air Purifier:

Use It 24/7

It may go without saying, but your air purifier can only do its work when it's on. You'd be surprised how quickly clean air goes back to dirty when you turn your air purifier off. As many tests have shown, and our own research has confirmed, an average room can take less than 20 minutes to go from clean air to dirty.

Therefore, we always recommend that you keep your air purifier running around the clock on at least the lowest speed (higher is better). Our air purifiers and filters are designed with constant use in mind, so you can rest easy knowing that your air is clean all the time.

Quick Tip: If you are turning the air purifier on after an extended absence, turn it to the highest setting to "turbo-charge" the cleaning process. With the BreatheSmart and BreatheSmart Fit50, the auto setting will do this for you if it senses that your air is dirty!

Placement, Placement, Placement

By far the easiest way to optimize your air purifier's performance is to simply know where to put it. 

  • If you've bought your first air purifier, put it in the bedroom. You spend a significant amount of time in your bedroom, so purifying your air there will have the biggest "bang for the buck".
  • Next, choose other high traffic areas of your home like the living room or kitchen, especially if those places are sources of irritants (like cooking or pet odors). In larger rooms, a larger air purifier may be more appropriate to be sure that you have the coverage you need.
  • Within a room, try not to put the air purifier where any of its inlets or outlets are blocked. This will help the air purifier fully clean the room and optimize air flow. If you have a T500, you can also use the unit like a standing fan, so point it where you want a cool breeze!

Want more ideas on where to put your air purifier? Check out our room-by-room guide, which suggests different units for different rooms in your home AND helps you decide which air purifier works best in what size space.

As always, if you have any questions or concerns, our service team is available by call, chat (bottom right of your screen) or email

Call us Toll-Free: (800) 630-2396

Use it on the right speed for your space.

One thing we don’t think gets enough attention is the speed that you run your air purifier on.  Your air purifier speed affects its coverage area.  

While you may be tempted to buy an air purifier with 800 square feet of coverage in order to clean your 800 square foot apartment, you may actually need much more coverage than that. This is due to several factors.  

First, the speed that you run the unit on affects its coverage area.  If you have a unit rated at 800 square feet, you will need to keep your unit on 24/7 on maximum speed in order to effectively cover 800 square feet.  

Next, air purifiers clean the air by creating a current within the room. Clean air exits the unit and dirty air is drawn towards the unit.  Air circulates around a single room very easily. But an air purifier is not able to create an air current to travel down a hallway, into adjacent rooms and back to the air purifier. Therefore, a two-bedroom, 800 square feet apartment, might need as many as 3 air purifiers to effectively cover each bedroom and the primary living room.


Meet your air purifier: