(Last Updated On: March 27, 2023)

When Should I Upgrade My Alen BreatheSmart 75i Air Purifier?

7 min read

Alen BreatheSmart 75i With Wood Cover sitting in dining room.

Everything has a lifespan – including your Alen BreatheSmart 75i Air Purifier. But how do you know when it’s time to replace or upgrade it?

Assessing Indoor Air Quality

Your first step should be assessing the quality of  your indoor air. The Alen BreatheSmart 75i is equipped with an air quality indicator that assesses what’s floating around and will adjust accordingly to get rid of it in the particular room where the unit is set up.

However, a stand-alone air quality monitor is a great way to see where another home air purifier unit would be helpful. To have the air in your home fully treated, you would need an air purifier in every room of the house. Most people don’t have the money to be able to afford that, however. So, a stand-alone air quality monitor will tell you where the highest concentration of pollution is and help you determine another room where air purification will be the most beneficial.

What Do the Colors Mean on Alen Air Purifiers?

Alen air purifiers’ intelligent sensors can change color indicators and display particle levels within a building. Blue lights indicate pure air, while red and purple indicators can be hazardous. Smart Sensors automatically adjust the fan speed on Auto to improve the air quality.

How Long Will My Air Purifier Filter Last

All of Alen’s BreatheSmart 75i air purifier filters are built to last at least 15 months, which is longer than most other air purifier brand filters. However, there are some factors that can cause them to need to be replaced sooner. It all comes down to what you use your air purifier for. The main goal is always cleaner, purer, more breathable air—but what are you pulling out of your air to achieve that?


Cigarette smoke is thick. Unlike many particles in the air, you can see it very well with the naked eye. It also sticks to other, smaller particles floating around and will linger in the air longer. You can always check the filter to see if it needs to be changed, but if there is a smoker in the house, your nose will likely tell you when to change the filter. The filter acts as a sponge, and like a sponge, it will only hold so much. It will also depend on how much you or the person living in your home smokes. The filter will last longer for an occasional smoker versus someone who smokes a couple of packs a day. The average lifespan for a filter in a smoky home is three to four months.


Pets are special members of our families, but they can also dirty up the air in our homes easily. The more pets you have and the bigger they are, the quicker your filter will need to be changed. Your nose will often be what lets you know, but checking the filter to see how dirty it is, is also helpful. If you’re using the odor cell filter to get rid of smells like litter box odor, you can expect the filter to last up to a year. If the filter contains carbon, you can expect to change the filter every four months.


If the purpose and function of your air purifier is general air pollution, you can expect it to last for more than a year. If VOCs are present and are being filtered out with carbon, your filter will last about four months.


If you or someone living in your home has asthma, air purifiers are important. And changing the filter when needed is vital to preventing an increase in symptoms or an asthma attack. To effectively rid your home of general air pollution to help in the treatment of asthma, your filter will likely last more than a year.


Whether you have seasonal or chronic allergies, you understand how miserable they can be. Air purifiers can greatly help in ridding the air of larger particles like pollen that trigger allergy problems. In this case, your filter should last more than a year. If VOCs cause allergy problems for you, and you need carbon in the filter to clear the air, you’ll need to change it every four months.

How to Know When It’s Time to Upgrade Your Alen Breathesmart 75i?

Your Alen BreatheSmart 75i air purifier may be performing well, but you may still need to upgrade to achieve the maximum benefits. Here are a few ways to determine if it’s time for a new unit:

  • Air Quality Indicator – The unit’s air quality indicator and particle sensor is reporting that the air is not fully cleaned.
  • Odor – You may have added a pet or be doing more cooking and the odor isn’t going away. You may need a unit with more carbon in the filter.
  • Allergies & Asthma – If you notice an increase in your allergies or asthma symptoms, your unit may not be big enough to handle the increased allergens during certain times of the year.
  • Noise – If you notice the machine is louder than it used to be, it may be time for a new unit. The pre-filter may also be too full and need to be cleaned or replaced.
  • Dust – If you notice more dust than normal, it may be time for an upgrade. You can also try turning up the fan speed to see if that helps.

Do I Need a New Air Purifier – Or Just a New Filter

Air purifiers are worth the investment, but they can be expensive to replace. So, if you’re trying to determine if you need a new unit, the first course of action should be changing your filter to see if that solves the problem.

If a new filter doesn’t make the difference you expect, then you can test your unit to see if you need a new one or if the one you have is still performing like it needs to. It’s ideal for your air purifier to perform two air exchanges every hour. The Alen BreatheSmart 75i large room air purifier will cover up to 1300 square feet every 30 minutes. The standard clean air delivery rate (CADR) is 200 or higher; however, the BreatheSmart 75i CADR is 400.

Powerful HEPA + Activated Carbon Filter

Most effective purifiers include HEPA and activated carbon filter combinations. The Alen BreatheSmart 75i uses this filtering combination to remove harmful pollutants as well as harmful particles. It features True HEPA filters and can be used with large rooms. Simply, this filter catches the tiny airborne particles that are not allowed to pass through our bodies.

Is it best to leave air purifier on all the time?

Because filters require air for air purification, it is best to always leave a purifier in use. Ideally, you should run your air purifier 24 hours a day, seven days a week at a high enough speed to give you two exchanges an hour. (You’ll also want to make sure the speed isn’t too noisy for you.)

What Else Can I Do to Help Make My Alen BreatheSmart 75i Last Longer?

There are some other things you can do to help extend the life of your Alen BreatheSmart 75i. One of them is performing regular maintenance on your home’s HVAC system. Have it professionally serviced every year by a certified company. Your cooling system should be checked in the spring and your heating system should be checked in the fall. This will ensure the system is performing properly and there aren’t any leaks or cracks.

It’s also important to change your HVAC filter regularly. The filters help protect the sensitive components of your HVAC system, while also filtering out large particles like dirt, dust, and hair. The filters should be changed, on average, every three months. If you have pets that stay inside, you should change the filter every two months. If you have more than one pet or suffer from allergies or respiratory problems, you should change the filter once a month.

Alen’s BreatheSmart 75i air purifier is built to last a significant amount of time. Alen backs its products up with a lifetime warranty. In order to receive the most benefit from your air purifier, you will need to register the product with Alen and sign up for its filter subscription program. You’ll be sent replacement filters to your home, when you need them.

General Air Purifier Maintenance and Lifespan

An air purifier’s lifespan usually falls within a range of 5 to 10 years, though this may be affected by its type, components, and upkeep. The life expectancy of an air purifier may fluctuate based on the model, quality of parts, and upkeep. In order to maximize the life expectancy of your air purifier, regular cleaning and filter changes are essential.

One factor that affects the longevity of an air purifier is its environment. If you live in a dusty area or have pets, these conditions can cause your filters to clog more quickly than normal. Additionally, if you use your air purifier frequently in large rooms with high levels of pollution or smoke particles, this will also reduce its lifespan over time due to increased strain on the motor and filters.

When it comes to signs that indicate your air purifier needs replacing, there are several key indicators: reduced performance efficiency; increased noise levels; higher energy consumption; visible damage or wear-and-tear on parts; strange odors coming from the unit; frequent clogging or replacement needed for filters; and overall poor indoor air quality despite running the device regularly. If any one (or more) of these signs appear while using your current model, then it may be time for a new one.

Proper maintenance and care of your air purifier can help extend its lifespan. Although there may come a time when it needs to be replaced, the next section will discuss tips for maintaining and caring for your air purifier in order to prolong its life.

Maintenance and Care for Your Air Purifier

Caring for your air purifier is essential to ensure it runs efficiently and lasts as long as possible. Maintaining your air purifier requires regular cleaning and filter changes, as well as troubleshooting any issues that arise. Here’s what you need to know about maintaining and caring for your air purifier.

Regular Cleaning and Filter Changes

To keep your air purifier running at peak performance, it’s important to clean the unit regularly. Depending on the type of filter in use, this may include removing dust or debris from the pre-filter or changing out a HEPA filter every three months. Additionally, some models require additional attention such as wiping down fan blades or vacuuming around vents with a soft brush attachment. It’s also important to check manufacturer instructions for any special care needs that may apply to specific models.

Troubleshooting Common Issues with Your Air Purifier: If you notice decreased performance from your air purifier—such as weaker suction or lower airflow—it could be due to an issue like clogged filters or blocked vents/fans. In these cases, it’s best practice to inspect all parts of the machine before attempting more advanced solutions like replacing internal components (e.g., fans). Also, check if there are any obstructions near where the unit is placed; furniture blocking airflow can cause problems too.

Proper maintenance and care of your air purifier is essential to ensure it runs efficiently. Replacing an aged air purifier can bring about numerous advantages, like improved operation, heightened filtration potentials, and decreased power utilization.

Benefits of Replacing an Old Air Purifier

Replacing an old air purifier can bring many benefits. The improved performance and efficiency of a new model can help keep your home’s air clean and healthy for longer periods of time. Additionally, enhanced filtration capabilities can capture more airborne particles than older models, providing better protection from allergens, dust mites, pet dander, and other pollutants. Finally, reduced energy usage can lead to cost reductions on electricity bills in the long run.

Modern air purifiers are designed with advanced technologies to make them more efficient and effective at capturing even the smallest particles down to 0.3 microns in size. Many feature multiple stages of filtration that capture even the smallest particles down to 0.3 microns in size—which is smaller than most bacteria. Plus, they often come with built-in sensors that detect changes in indoor air quality so you know when it’s time to adjust settings or replace filters.

Replacing an old air purifier can provide many advantages, such as improved performance and efficiency. Newer models feature multiple stages of filtration, allowing them to capture even the smallest particles down to 0.3 microns in size. Furthermore, they often include built-in sensors that detect any alterations in the air quality of your indoor environment to ensure you are always aware. High-end models also feature activated carbon filters for absorbing odors like smoke or pet smells, making sure your house stays fresh all day long.

FAQs Regarding When To Replace an Air Purifier

How Many Years Do Air Purifiers Last?

Air purifiers may have a shelf life of anywhere from five to ten years, contingent on the kind. Regular maintenance and filter changes are essential to ensure optimal performance over time. High-end versions may boast a longer lifespan due to their superior engineering and components. Additionally, proper placement of air purifiers can help extend their life expectancy by ensuring they’re not exposed to excessive dust or other particles that could clog filters faster than normal.

Do Air Purifiers Wear Out?

Yes, air purifiers do wear out over time. The lifespan of an air purifier depends on its usage and the environment in which it is used. Regular maintenance such as replacing filters or cleaning components can help extend its life. Periodic recalibration may be needed to guarantee the air purifier is working at its best. To ensure your air purifier performs optimally, adhere to the manufacturer’s instructions for proper upkeep and maintenance.

How Do I Know When My HEPA Air Filter Needs to Be Replaced?

HEPA filters should be switched out every 6 to 12 months, as suggested by the manufacturer. To ensure optimal performance of your filter, check the filter regularly for any visible signs of wear and tear such as tears or holes in the material. Additionally, pay attention to changes in air quality and odor levels throughout your home; if these worsen over time despite regular cleaning of other sources like upholstery and carpets, it may indicate that you need a new HEPA filter.

Shopping for a New Air Purifier

When purchasing an air purifier, there are several aspects to consider. First, you need to determine what type of air purifier is best suited for your needs. Do you want one that uses filters or an electronic model? Are you looking for something portable or do you need a larger unit? Figuring out the ideal size and type of air purifier for your area could aid in slimming down the selection.

Next, consider the features available on different models. Look at the filter types used by each model and make sure they are designed to remove common pollutants like dust mites, pet dander, smoke particles, pollen and other allergens from the air. Also check out any special features such as timers or sensors that may be included with some models.

When choosing an air purifier, it’s wise to compare prices from online retailers such as Amazon or eBay, local stores like Home Depot and Lowe’s, and manufacturers’ websites. Check online retailers like Amazon or eBay as well as local stores like Home Depot or Lowe’s which often have great deals on top-of-the-line products at discounted prices. You can also find quality options through manufacturers’ websites directly if their products aren’t sold in stores near you. Before committing to a purchase, make sure to look into reviews so you know what kind of product and customer service experience awaits when buying an air purifier online or in-store.


Replacing an old air purifier can have many benefits, from improved performance to cost savings. Before investing in a new air purifier, contemplate the features necessary to make sure your purchase is suitable for you. From regular cleaning and filter changes to troubleshooting common issues with your air purifier, proper maintenance will help prolong its life. Knowing the average lifespan of an air purifier as well as the signs that yours may need replacing can help you make informed decisions about when it’s time for a replacement. Armed with this information, you should be able to make an informed decision when selecting the ideal air purifier for your living space or workplace.

Ultimately, the decision of whether or not to replace an air purifier is up to you. If your air purifier is still operating as intended, it might be prudent to maintain use until it stops functioning optimally. However, if you notice any signs that suggest your unit needs replacing such as decreased performance or a build-up of dust and dirt on filters, then investing in a new model might be worth considering for improved indoor air quality and peace of mind.

Discover the latest air purifier technology and learn when to replace your air purifier for optimal performance. Upgrade now and breathe easier!

Alen BreatheSmart
75i Air Purifier

$749.00 Buy Now