The Alen BreatheSmart 45i True HEPA Air Purifier Review

When you buy through links on our site, we may earn an affiliate commission. Learn more

Last Updated: 12/03/2020

Product Overview

When looking for an air purifier for your home, the ideal purifier would purify and clean each room in your household without any problems.

With concerns ranging from strong cooking and pet odors to overall wellness, the Alen BreatheSmart 45i True HEPA Air Purifier is the perfect air purifier for every type of household, large or small, busy, or calm. Ideal for smaller rooms and spaces, such as bathrooms, this best-selling air purifier packs quite a punch, even being small.

Newly back in stock, the Alen BreatheSmart 45i True HEPA Air Purifier is perfect for any family or individual.

Alen BreatheSmart 45i True HEPA Air Purifier

Alen BreatheSmart 45i

  • Coverage: 800 SqFt
  • 50 watts on highest speed
  • 15 lbs weight
  • Cord Length 6ft


Ideal for elevating your indoor wellness and environment, the Alen BreatheSmart 45i True HEPA Air Purifier contains many qualities perfect for each household environment.

Recently redone and back in stock, the new and improved advanced technology makes this air purifier extremely powerful. A forever guarantee allows each customer to be pleased with their purchase for life, although no qualms should be found with this incredible machinery.

Here are the specs behind the Alen BreatheSmart 45i True HEPA Air Purifier:

  • A maximum coverage area of 800 square feet and a minimum coverage area of 250 square feet
  • A filtration rate that removes 99.97% of particles greater than 0.3 microns
  • An airflow maximum speed of 215 CFM
  • A clean air delivery rate (CADR) of 245
  • A lightweight 15-pound machine
  • A small but sizable 25 inches by 15 inches by 8.5 inches
  • Power consumption of 50 watts (on highest speed)
  • A power supply of 120 V
  • Noise levels: 23 dB on lowest speed, 49 dB on the highest speed


The sleek and contemporary design of the Alen BreatheSmart 45i True HEPA Air Purifier allows for it to fit perfectly in any room of your house.

Colors range from the classic white to espresso and even oak. Although small, this air purifier is mighty and can clean 800 square feet in only 30 minutes. New and advanced technology elevates this purifier to the highest quality, ensuring that all impurities in the air are addressed.

With new and improved technology, high-quality HEPA filters, and tons of power, this air purifier will please even the toughest of critics.

Here are the highlights behind the BreatheSmart 45i:

  • New design and technology
  • A state-of-the-art laser particle sensor
  • Modern, easy to see color schemes
  • A customizable modern design
  • 4 HEPA filters, ranging from Pure to Heavy Smoke
  • An extra antimicrobial filter layer to kill bacteria and inhibit mold and fungi growth
  • A nontoxic odor-eliminating technology to destroy unwanted smells
  • Quiet, but powerful, with soothing pink noise to help increase sleep

Where to Use the Alen BreatheSmart 45i

Each room within a household could use an air purifier. The Alen BreatheSmart 45i True HEPA Air Purifier is ideal for smaller rooms, such as bathrooms, small bedrooms, or small offices.

With its intelligent technology, this air purifier is constantly cleaning each room it is placed in, day and night. Easily tailored to you, its true HEPA filters and antimicrobial filter options ensure that every breath you take is as pure as can be.

  • Using the BreatheSmart 45i in Bedrooms

Perfect for smaller bedrooms, the Alen BreatheSmart 45i True HEPA Air Purifier can clean 800 square feet every half-hour with a unique, space-conserving design.

Able to emit soothing pink noise for a restful night’s sleep, this machine was validated by SleepScore Labs to give you a better night’s rest. This air purifier can even have its display dimmed by 50% at bedtime with only one touch, or you can have the lights go out completely if you’re more prone to complete darkness.

Customizable with a modern, sleek design, this purifier can fit into any bedroom décor and keep you and your loved ones breathing cleaner air for life.

  • Using the BreatheSmart 45i in Offices

Office spaces are just as important as bedrooms and with its quiet yet powerful design, the Alen BreatheSmart 45i True HEPA Air Purifier is sure not to disturb any office occupants while they are hard at work.

Small and quiet, this air purifier is sure to fit into any office space. Its new technology allows for easy-to-read displays in five LED colors with real-time air quality checks.

The purifier can also auto-adjust its power instantly to keep your indoor air as pure and clean as possible. You won’t want to leave your office ever again with all of the pure, clean air you’ll be breathing in!

  • Using the BreatheSmart 45i in Bathrooms

Bathrooms can cause many odors to circulate throughout a household and having an air purifier in or even near the bathroom can lead to cleaner, fresher air.

The 4 filters offered for the Alen BreatheSmart 45i True HEPA Air Purifier range from HEPA-Pure to HEPA Heavy Smoke. The perfect filter for odors regarding bathrooms would be the HEPA-OdorCell filter.

This particular filter can neutralize odors at a molecular level, which leaves your home smelling fresh. Customizable options are available as well for heavier odors throughout the house, such as large pet odors.

  • Using the BreatheSmart 45i for Wildfire Smoke and Smoke Odors

Wildfires may be a seasonal concern, but the Alen BreatheSmart 45i True HEPA Air Purifier is ideal for both seasonal and year-round smoke concerns.

The 4 filter options available for this air purifier include a filter specifically made for heavy smoke, the Alen BreatheSmart 45i True HEPA-Smoke Filter.

This filter and air purifier works in tandem to remove the most harmful ingredients in smoke: fine particles and toxins. Removing the toxins ensures a cleaner, healthier living space, but the odor of smoke can often hang around for quite a while.

Combining this air purifier with the right filter ensures that allergens and smoke particles, such as those from tobacco, are captured and removed from your air. The extra activated carbon found in certain True-HEPA filters also works to destroy tough smoke odors that often linger in your home.

  • Using the BreatheSmart 45i for Allergies and Dust

Living in a healthy indoor environment is crucial for your overall well-being, and the Alen BreatheSmart 45i True HEPA Air Purifier is the absolute best air purifier for your indoor environment.

Two of the most common concerns include allergies and dust and removing these from your indoor environment can give you a healthier lifestyle. With its ability to tailor to your individual needs and its use of true HEPA filters, this machine can extraordinarily lessen the allergens and dust found inside.

  • Using the BreatheSmart 45i for Asthma Triggers

Asthma can be tough to manage for anyone in the household and common triggers are found in any home, new or old. These triggers can include dust, pollen, pet dander, and mold.

By using the Alen BreatheSmart 45i True HEPA Air Purifier, the harmful particles of these triggers can be removed from your air to help eliminate any asthma sources.

This air purifier’s new design and HEPA filtration system are the absolute best for capturing the most harmful of particles, purifying the air you breathe indoors, and ensuring an overall wellness improvement.

  • Using the BreatheSmart 45i for Chemical and Cooking Odors

To best enjoy your indoor living environment and improve your overall health, eliminating unhealthy chemicals from the air you breathe is a must.

The True HEPA filters found in the Alen BreatheSmart 45i True HEPA Air Purifier ensure that you are receiving maximum protection from chemicals and odors, whether it be from cooking or chemicals. This air purifier works together with your selected HEPA filter, which contains three times more activated carbon than other Alen filters.

This is to reduce the heavy odors and chemicals that can be found in your indoor air. Whether it be odors from cooking, pets, kids, or sweaty apparel, rest assured that this air purifier can handle any odors and chemicals that your house may contain.


The new and improved Alen BreatheSmart 45i True HEPA Air Purifier is ideal for all of the uses listed above and for many other things.

This air purifier is a small yet mighty machine and can soothe you to sleep with its pink noise feature all while eliminating harmful particles you’re your air.

Each room in your house has different particles in the air, whether it be particles that are common for asthma triggers or just lingering odors that are hard to get rid of.

No matter the source, this air purifier is ideal for all purposes you may use it for and with a lifetime guarantee, you can rest easy (and more soundly!) with this machine anywhere in your house.

With its many uses in a variety of rooms, this air purifier will ensure healthier air and indoor living environments for a lifetime and every member of your household.