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Alen T500 True HEPA Tower Air Purifier Review

Alen T500 Air Purifier is one of the best options for small spaces. It has a tower design, so it will not have a massive footprint. Being Energy Star certified, it will run efficiently and help you in reducing those utility costs.

Here’s the best part… You’ll get a lifetime warranty. These are all the bells and whistles that you need to have in your air purifier unit for home.

But how good is it? We are going to find out everything about it in this comprehensive review.

Alen T500 True HEPA Tower Air Purifier

Our readers get 20% off T500 HEPA Tower Air Purifier with code 20T500 until 06/01/22


  • Compact size and footprint.
  • Lightweight and eases mobility.
  • Cleans 500 square feet every half an hour.
  • H13 True HEPA filters.
  • Lifetime warranty.
  • Energy Star certified.


  • Does make little noise.
  • Not for large spaces.

Alen T500 True HEPA Tower Air Purifier Design & Size

The Alen T500 air purifier is a tower unit. So, it is not going to take up much space in terms of floor area. You can conveniently place it somewhere in a corner, and it will continue to do its job. It is a pretty tall unit and comes with 22-inch x 6-inch x 10-inch.

The unit comes with a decent cord length, but you will need to place it right around an outlet to power it. However, this unit only weighs around 9 lbs., so moving it from one room to another will not be an issue at all.

Alen T500 True HEPA Tower Air Purifier Portability

You won’t have any problem moving this lightweight unit (9lbs.) from one place to another. Some of the units in this category from other brands are not as lightweight as the T500, so it has a clear edge over them. As it’s a tower unit, so it’s not going to have much footprint either. Overall, it’s a pretty portable unit to have in your home.

Alen T500 True HEPA Tower Air Purifier Purifying Power

The T500 can remove up to 99.99% of particles and impurities in your air down to 0.1 microns in size. This is all because of the True HEPA filter that is present inside this unit. It is for 500 square feet area.

And it will only take 30 minutes to clear it when you run it at its highest setting. In addition, this unit can manage 130 CFM at the highest setting, which is suitable for this room size. In most cases, tower air purifiers don’t come with this much power, especially if you compare them with other market options.

Alen T500 True HEPA Tower Air Purifier Key Features

This T500 Tower is a handy unit for 500 square feet area. So, it’s an excellent option for smaller rooms. Still, 500 square feet is pretty big, and the unit will only take half an hour to exchange the air completely.

In addition to that, this unit is Energy Star certified, and it will keep your power consumption low as well, and we will talk about it in a bit.

Moreover, this unit ensures medical-grade protection thanks to the True HEPA filter that is present inside it. With this H13 filter, the unit can catch 99.99% of airborne particles down to 0.1 microns in size. This is due to its powerful airflow that guarantees pure air for your space.

And of course, as it is, Alen, you will get that lifetime warranty as well. No matter the problem with your Alen T500, the company will ship a replacement free if they cannot resolve it.

This gives huge peace of mind because you know that the company backs all its products and is willing to go out of the way to serve its customers. This is one of the huge factors you need to consider when buying an air purifier because Alen has raised the bar.

Alen T500 True HEPA Tower Air Purifier Noise Level

This is the area that Alen needs to focus on. No matter what unit we have tried from Alen, it did make some noise, especially if you compare it with its competitors.

So, Alen’s units are not very quiet, and similar is the case with the T500. It will continue to run quietly at lower speeds. But as soon as you increase the speed, the unit will start making some noise.

It is still better than some units out there, but this is the problem that Alen needs to address. This unit is rated for 42 dB noise level rating at lower speeds.

But as soon as you run it at the highest speed, the unit will start sounding at 56 dB. This dramatic increase puts off some people so much that they leave this unit for a quieter alternative.

Alen T500 True HEPA Tower Air Purifier Power Consumption

There are some units by Alen that are not Energy Star certified, like the BreatheSmart Classic. But the T500 Tower does come with the Energy Star certification.

Therefore, you immediately know this unit will not cost you much when it comes to power consumption. It also means you can let it run all day long if you need. It consumes less than a watt at low power and up to 53W at full power.

However, even if you compare it with some other units by Alen, you will see a significant difference. It only needs a 120V 2-prong power cord, and it will run like a charm.

Alen T500 True HEPA Tower Air Purifier CADR, ACH, Room Coverage

This unit has a clean air delivery rate (CADR) of 145, while its air change rate per hour is 5 at full speed. Normally, ACH is considered the rating used to measure an air purifier’s strength and performance capability.

However, if a unit can exchange air within a space about 5 times per hour, it is high-performing. And that’s what the T500 Tower is all about.

Plus, it does all that fit a space that is 500 square feet in area. So, this unit can handle space in your room quite comfortably. It will perform well in any room that is smaller than this area.

Alen T500 True HEPA Tower Air Purifier Maintenance and Usage

Alen T500 True HEPA Tower Air Purifier Controls

As we all know by now, the T500 Tower comes with True HEPA filters. It means you will not spend much time cleaning the filters. In addition, these filters can conveniently last for up to 9 months if you use the air purifier daily. So, you will be able to save some of your filter costs as well.

In addition, the unit is not complex. You can conveniently access the filters and clean them, and after that, put them packed in. Similarly, using the controls of this air purifier is not complex as well. So, it is one of the easiest models to use, and there is an automatic fan feature.


  • Can I leave this unit running at night?

Yes, you can leave it running all night long. It will continue to work and keep your air clean while you’re breathing during your sleep. In addition, it will reduce germs or bacteria and get rid of any odors or dust from the air you’re breathing, creating a healthy environment for you to sleep in. Therefore, you can leave your tower air purifier running during the night.

  • What does “Energy Star certified” mean?

Energy Star certified air purifiers are designed to save energy and reduce your utility costs. In addition, these units help protect the environment because they don’t produce greenhouse gases within a building.

So, your space remains safe from any carbon monoxide build-ups, which can be hazardous because Carbon Monoxide is a poisonous gas. These certified units meet those strict energy standards set by the US Environmental Protection Department (EPA).

  • Can I use this unit in a 400 soiree feet room?

Yes, you can use this unit in a 400 soiree feet room because it is under the square footage for which the unit is rated. This unit is rated for 5 ACH at 500 square feet. When the square footage decreases, the unit becomes more powerful, and its ACH increases.

The increase in size and eventually going above the square footage that the unit is rated for will make the air purifier weaker. For instance, this air purifier is rated for 500 square feet with ACH 5. With 600 square feet, its ACH will drop, but for 400 square feet, its ACH will increase, and so will its performance.

Our readers get 20% off T500 HEPA Tower Air Purifier with code 20T500 until 06/01/22

Final Thoughts

The T500 Tower by Alen is a great choice if you are looking for an air purifier for smaller areas of up to 500 square feet. It can exchange air 5 times per hour at its highest speed and clean air within half an hour.

This unit is Energy Star certified and will not consume much energy. Therefore, it ultimately means that your utility cost will decrease. As it is a tower unit, it is not going to cover much floor area as well.

With True HEPA filters, you will also save some maintenance costs and spend much time cleaning them. Furthermore, this unit is covered under Alen’s lifetime warranty. Therefore, it is a good choice for smaller spaces.

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