(Last Updated On: June 21, 2021)

Top 5 Small Air Purifiers for Your Bathroom

air filter for pet allergies from dogs

By Bianca Herron

12 min read

When it comes to air purifiers, you may have thought to place the air cleaner in many rooms in your home. However, have you ever thought of putting it in your bathroom? An air purifier would be perfect for helping eliminate bacteria, germs, odors, and mold. At the same time, mold can grow just about anywhere in your home, though the bathroom is the most common.

For mold to grow, it needs moisture, oxygen, and damp and dimly lit areas — many characteristics of a bathroom. Mold may start as a small spot but can grow and spread quickly in 24 hours under the right conditions. According to Disease Control and Prevention centers, molds release tiny spores that can float in the air.

During these times, indoor air quality is more important than ever, especially if you share a home with someone who is high-risk for contracting COVID-19. These times are even more dangerous if you or your loved one gets exposed to mold at home. Some exposure to moldy environments may trigger common symptoms, including sneezing, coughing, runny nose, itchy eyes, and headaches. However, those sensitive to molds can experience severe health effects, including asthma attacks, permanent lung damage, and infections.

Top Pick

Austin Air Bedroom Machine
$765

Buy on Amazon

Products in this article are independently selected and featured editorially. If you make a purchase using these links we may earn commission. 

How We Rate

An air purifier is an excellent solution to not only eliminate mold but also remove germs, bacteria, odors, and other allergens from your bathroom. There are many factors to consider when choosing the best bathroom odor eliminator. For instance, it would help if you think about the size of your bathroom and choose an air purifier that comes with a HEPA filter that removes up to 99.7 percent of mold, bacteria, dust, and other allergens.

At air purifiers.com, your trusted source for all things air purifiers, we have researched to help you find a small air purifier.

Austin Air
Bedroom Machine
Air Purifier

$765 Buy Now
Alen BreatheSmart
45i with Carbon
Air Purifier

$398 Buy Now
Rabbit Air
BioGS 2.0
Air Purifier

$400 Buy Now
Coway
Airmega HEPA
Air Purifier

$195 Buy Now
Sharp
Plasmacluster Ion
Air Purifier

$203 Buy Now

Best Small Air Purifier for
Your Bathroom

Austin Air Bedroom Machine

$ 765 Buy on Amazon

Pros

Five-year warranty

True Medical-Grade HEPA filter captures 99.97 percent of airborne particles larger than 0.3 microns

Multiple color options: Sandstone, Midnight Blue, and White

Cons

Heavier than other competitor products

Features and Specs

  • Dimensions: 14.5 x 14.5 x 23 inches
  • Weight: 53 pounds
  • Five-stage filtration system
  • Three fan speeds

If you or a loved one suffers from a sleep-related problem, the Austin Air Bedroom Machine Air Purifier is a wise choice. You and your family can be confident that you will sleep better and continuously breathe clean air. Its True medical-grade HEPA filter eliminates up to 99.97 percent of all airborne particles larger than 0.3 microns.

This includes dust, pet dander, pollen, gases, and other allergens. With three speed settings for its fan, the Austin Air Bedroom Machine air purifier boasts a 360-degree intake system and a five-stage filtration system. Additionally, its High-Efficiency Gas Arrestance (HEGA) carbon cloth absorbs gases, chemicals, bacteria, and other viruses. 

2nd Best SmallAir Purifier for
Your Bathroom

Alen BreatheSmart 45i with Carbon

$ 398 Buy on Amazon

Pros

True HEPA filter

Laser Smart Sensor

Multiple color options: White, Expresso, Graphite, and more

Cons

Cost

Features and Specs

  • Dimensions: 25 x 15 x 8.5 inches
  • Weight: 23 pounds
  • Four-stage filtration system
  • Medical-Grade True HEPA filter and B4-Pure filter
  • 800 square feet room coverage

The Alen BreatheSmart 45i with Carbon is a stylish and sophisticated air purifier that can clean bedrooms up to 800 square feet twice every hour. The True HEPA filter removes airborne particles, including allergens, dust, orders, pet dander, bacteria, and mold spores. The 45i with Carbon also comes with a HEPA Silver filter, which helps kill airborne bacteria, germs, viruses, and more. 

This air purifier stands at a little over two feet tall and 15 inches wide; the 45i with a Carbon air purifier can sit in your bathroom without taking up much space. Additionally, the unit comes with many features that make the 45i with Carbon easy to use and simple to operate. This includes the Laser Smart Sensor, which detects airborne particles and automatically adjusts to your environment. Check your air quality at a glance with the LED color display, and the WhisperMax Technology, coupled with four fan speed options, helps you and your family rest peacefully no matter where you place it.

Additionally, the 45i with Carbon is a wise choice for those who need help eliminating smoke. Whether you live nearby highways, an area affected by wildfire smoke, or need to eliminate VOCs or odors, the 45i’s True HEPA-Heavy Smoke Activated Carbon Filter effectively absorbs smoke with more than two pounds of activated Carbon. Each filter has a life span of nine to 12 months with regular usage.

Better Small Air Purifier for
Your Bathroom

Rabbit Air BioGS 2.0

$ 400 Buy on Amazon

Pros

24/7 lifetime technical support

BioGS HEPA filter and Activated Charcoal filter captures 99.97 percent of airborne particles as small as 0.3 microns

Energy Star rated

Cons

One-color option: white

Features and Specs

  • Dimensions: 16.6 x 9.8 x 22.2 inches
  • Weight: 16.8 pounds
  • Energy Star Rated
  • 625 square feet room coverage

The Rabbit Air BioGS 2.0 air purifier cleans bedrooms up to 625 square feet twice every hour. As an Energy Star-rated air purifier, the Rabbit Air BioGS 2.0 is very quiet. It also comes with a four-stage filtration system, washable pre-filter, and childproof feature, which pauses the air purifier's operation when you remove the front panel. It also comes with a five-year warranty as well as 24/7 lifetime support. 

Good Air Purifier for Your Garage Gym

Coway Airmega HEPA

$ 195 Buy on Amazon

Pros

Coway IoCare Mobile App

True HEPA filter and Activated Charcoal filter captures 99.97 percent of airborne particles as small as 0.3 microns

Multiple color options: Black, Brown

Cons

It covers up to 325 Sq Ft

Features and Specs

  • Dimensions: 22.5 x 22.2 x 12.4 inches
  • Weight: 19.76 pounds
  • Three-stage filtration system
  • Energy Star Rated
  • 325 square feet room coverage

The Coway Airmega is an energy-efficient air purifier that boasts a True HEPA filter and Activated Charcoal filter, which capture airborne particles such as pollen, smoke, pet dander, and other allergens. It also comes with a washable and permanent pre-filter to catch particles larger than 0.3 microns. The Coway IoCare mobile App allows you to monitor the air quality in offices up to 325 square feet. You can also control the fan speed, use smart control mode, get filter notifications, and much more. Additionally, the air purifier works with Alexa and comes with three fan speeds and a pollution sensor, which shows indoor air quality in real-time.

2nd Good Small Air Purifier for
Your Bathroom

Sharp Plasmacluster Ion

$ 203 Buy on Amazon

Pros

Low noise operation

True HEPA filter captures 99.97 percent of airborne particles as small as 0.3 microns

True HEPA and active carbon filters last up to two years

Cons

One-color option

Features and Specs

  • Dimensions: 8.2 x 15.1 x 21.3 inches
  • Weight:11 pounds
  • Three-stage filtration system
  • True HEPA filter eliminates airborne particles traditional filters cannot trap
  • 259 square feet room coverage

The Sharp Plasmsacluster Ion Air Purifier comes with a high-efficiency HEPA filter and 15 pounds of activated Carbon to eliminate odors and harmful chemicals in the bathroom. The unit’s three-stage filtration system includes a long-life True HEPA filter and Activated Carbon filter, which captures up to 99.97 percent of airborne particles as small as 0.3 microns. With a coverage area of 259 square feet, the Sharp Plasmacluster Ion air purifier is whisper quiet and has a Plasmacluster Express Clean mode, which provides an extra boost of cleanness. Additionally, the Sharp Plasmacluster Ion air purifier comes with a washable pre-filter for larger airborne particles, which helps extend the overall life of your filters.