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MinusA2 Ultra Quiet Air Purifier

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Product image 1Standard (White)
Product image 2Standard (Black)
Product image 3Cherry Blossom (White)
Product image 4Starry Night (Black)
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Product image 6Branch Out Zen (White)
Product image 7Great Wave (Black)
Product image 8Mingei Memory (White)
Product image 9Light of Liberty (White)

Regular price $619.95 Free Shipping* & Returns

Free 3-5 Business Day Shipping | Learn more
MinusA2 Ultra Quiet Air Purifier
Covers up to
815 sq.ft.

Effective Filtration

Next Generation HEPA Filtration

HEPA is the most trusted filtration technology in the world, used by hospitals, high-tech clean rooms, and scientific laboratories. Our advanced BioGS® HEPA filtration system is true-HEPA rated. It builds and improves on the traditional HEPA; composed of a proprietary fiber material, it traps allergens and particles 0.3 microns in size at 99.97% efficiency and particles less than 0.1 microns in size at higher than 99% efficiency3.

Our BioGS HEPA filters traps and reduces common allergens1 and bacteria2 trapped on the filter to support optimum filter efficiency and prolong filter life. Unlike traditional HEPA filters which could allow bacteria and virus to grow over time.

Customized Filtration

One of the MinusA2's unique features is the ability to customize the filtration to target your specific concerns. Customized filter is one of the five filters in the MinusA2 air purifier. This bonus layer of protection enhances the cleaning power of your targeted pollutants. Each customized filter has a different proprietary coating or structure which helps target specific allergens or concerns.

Germ Defense Filter

Physically traps airborne bacteria, mold spores and particles that carry viruses

Toxin Absorber Filter

Traps and reduces volatile organic compounds (VOCs) and other chemicals

Pet Allergy Filter

Traps and reduces pet dander allergens

Odor Remover Filter

Traps and reduces odors from pets, cigarettes and cigars, cooking and mildew

We got you Covered!

The MinusA2 easily handles the most common allergens and pollutants in the home and many more.

Dust mites

Mold & fungi

Pet dander



Bacteria & particles that carry viruses

Six-stage purification & deodorization

Stage 1. Pre-Filter

The Pre-Filter effectively traps and reduces large sized allergens, dust, and particles.

Traps and reduces :

  • Dust mite matter allergen
  • Large particles
  • Pet hair
  • Pollen

Stage 2. Medium Filter

The Medium Filter traps and reduces airborne particles larger than 1 micron in size, such as pollen and pet dander allergens.

Traps and reduces :

  • Pet dander allergens
  • Dust particles
  • Pet hair
  • Pollen

Stage 3. BioGS® HEPA Filter

Our advanced BioGS HEPA filtration system builds and improves on the traditional HEPA—composed of an electrostatic-charged proprietary fiber material, it traps particles as small as 0.1 microns in size at 99% efficiency3. Unlike traditional HEPA filters that might allow the growth of bacteria and viruses over time, our BioGS HEPA filters trap and reduce common allergens1 and bacteria2 trapped on the filter to support optimum filter efficiency and prolong filter life.

HEPA filter comparison

Rabbit Air BioGS HEPA Filter

Common allergens 1 and bacteria 2 trapped and reduced by the BioGS HEPA filter over time.
BioGS HEPA Filter Typical HEPA Filter
Traps allergen and particles 0.3 microns in size at 99.97% efficiency and over 99% efficiency for particles less than 0.1 microns3 Yes Yes
Reduces common allergens 1 Yes No
Reduces the growth of bacteria and viruses on the filter 2 Yes No
Prolongs optimal filter efficiency Yes No

Traps and reduces :

  • Bacteria
  • Cooking odors
  • Dander
  • Dust particles
  • Pet odors
  • Exhaust fumes
  • Mold & fungi
  • Pet hair
  • Pollen
  • Particles that can carry virus

Stage 4. Customized Filter

Tailor the MinusA2 air purifier to fit your personal needs. Choose from a variety of customized filters including Germ Defense, Pet Allergy, Odor Remover, or Toxin Absorber. Each filter is specially engineered to physically trap different types of chemicals, odors, allergens, and particles that carry viruses.

Germ Defense

The Germ Defense filter is specially engineered to physically trap bacteria, mold and particles that carry viruses. This filter is perfect for children, elderly people, and those with compromised immune systems who are most sensitive to particles in the air.

Toxin Absorber

The Toxin Absorber filter is specifically designed to trap and reduce volatile organic compounds (VOCs) such as formaldehyde and toluene, which are commonly found in households and wildfires, as well as other airborne chemicals. It is ideal for use in new or renovated homes and offices.

Pet Allergy

The Pet Allergy filter is specially engineered to trap and reduce pet dander allergens. By reducing these contaminants, it allows you and your family to breathe in comfort at home.

Odor Remover

The Odor Remover filter is specially designed to trap and alleviate odors from pets, cigarettes and cigars, cooking, and mildew.

Stage 5. Activated Carbon Charcoal Filter

Made of high-grade granular activated carbon, our AC filter is much more effective than typical AC filters, which are coated with a thin layer of activated carbon. Chemicals and common household odors can be effectively reduced.

Traps and reduces :

  • Cooking odors
  • Exhaust fumes
  • Greenhouse gases
  • Household odors
  • Pet odors
  • Tobacco smoke
  • Volatile organic compounds (VOCs)

Stage 6. Negative Ions

Negative Ions are odorless, tasteless and invisible molecules that are found near mountains, waterfalls and beaches. Some research studies show that negative ions help to alleviate depression and boost mental energy, but that's not all that these tiny molecules can do. Negative Ions help your air purifier by latching onto airborne particles, thus weighing them down. This allows the particles to get trapped more easily by your air purifier's filters, or to settle onto the floor where they can be picked up by your vacuum instead of accidentally inhaled.

Intelligent Purification

Three Element Sensing + Control Anywhere using Rabbit Air App

Get acquainted with our MinusA2 SPA-780N. Outfitted with wireless internet capabilities, this unit allows you to monitor air quality and control purification in your home whether you're sitting on the couch or away from the house. Enjoy the effortless experience of clean air with this cutting edge version of our favorite machine. Learn more

Rabbit Air moble app screen showing unit power status, air quality, fan speed, auto mode, pollen mode, mood light and light setting.

Rabbit Air products are in a class of air purification all their own. With highly sensitive odor and particle sensors, our advanced air purifiers detect the amount of pollutants in your environment and adjust their speed accordingly to assure the freshest air quality at all times.

(1) When it senses particles or odors in the air, the machine increases fan speed.

(2) The machine switches over to high speed until the air has been cleaned.

(3) Once the sensor detects a reduction in airborne pollutants, the machine will resume its original speed.

Our MinusA2's light sensor automatically cuts back on light pollution by defaulting to a low-energy, dimmed sleep lighting when the room darkens. When daylight returns or light levels increase, the MinusA2 resumes its normal mode.

Ultra Quiet

Energy Efficient BLDC Motor
Rabbit Air purifiers' cutting edge Brushless Direct Current (BLDC) motors are prized for their dutiful and silent work. Enjoy the benefits of a vigilant yet quiet machine that works around the clock to keep your air clean.
The table below shows noise levels of different environments and our products.
Name Noise Level
Breath 10 decibels
Clock tick 20 decibels
Rabbit Air A3 SPA-1000N 20.3 decibels
Rabbit Air BioGS 2.0 SPA-550A 22.8 decibels
Rabbit Air MinusA2 SPA-780A 25.6 decibels
Whisper 30 decibels
Library environment 40 decibels
Conversation 60 decibels
Our advanced BLDC Motor with inverter control that operates at five different speeds. At its lowest speed, the air purifier barely makes a sound. The absence of motor brushes makes our motor a much quieter, more efficient unit.

Exceptional Value

Long Lasting Filters, Low-Cost Operation

Why Rabbit Air purifier is a smart investment? With its low cost operation design, you can save an average of $898.35 over 5 years with Rabbit Air4. Our filters can last up to two years with 12 hour daily operation, and our Energy Star certified air purifier is very energy efficient and keeps annual costs low.

Our air purifiers have one of the lowest annual operating costs when compared to others on the market5.

Bar chart: comparing the operating cost for different air purifiers
Bar chart: comparing the operating cost for different air purifiers
The table below compares the annual operating cost of our air purifiers and other air purifiers on the market. ††
Air Purifier Annual Cost
Rabbit Air BioGS SPA-550A $86.83
Rabbit Air MinusA2 SPA-780A $165.54
Rabbit Air A3 SPA-1000N $184.38
Honeywell HPA300 $225.35
Whirlpool WPPRO2000 $271.70
Blueair Classic 480i $401.60
IQAir HP Compact Plus $460.91

Peace of Mind

Award-Winning 24/7 Service and 5-Year Warranty

Bizrate Circle of Excellence Platinum Award

At Rabbit Air, we stand behind our products 100%. That's why we offer a 5-year warranty, 24/7 tech support, and free shipping* and returns within 90 days of purchase. Learn more

Free shipping*
and returns
24 hour

Tech Specs

MinusA2 SPA-780A
Weight 19.4 lbs.
Dimension 20H x 21.4W x 7D in.
Power Cord Length 9.33 ft.
Standard Coverage 6
(2 ACPH 7)
815 sq. ft.
Allergy Sufferer 6
(4 ACPH 7)
408 sq. ft.
Power Consumption 6 to 61 watts
Noise Level 25.6 to 51.3 dBA
Air Flow 58 to 218 CFM
CADR (Pollen) 200
CADR (Dust) 193
CADR (Smoke) 180
Wifi Enabled
(iOS and Android)
Annual Filter Cost $47.50 (12hr/day operation)
$95.00 (24hr/day operation)
Learn more about filter maintenance
Power Requirements 120V AC 60 Hz
California Residents WARNING - California Prop 65

Airflow diagram

Inlet: Indoor air is drawn through the filters 360 degrees around the front panel.

Outlet: Clean air is released from the back of the unit in an upward direction towards the room.

Size of product

Width: 21.4 inches, height: 20.25 inches, depth: 7 inches

20.25H x 21.4W x 7D (inch)

What's in the box

  • MinusA2 Air Purifier
  • Remote Control
  • Pre-Filter
  • Medium Filter
  • BioGS HEPA Filter
  • Customized Filter
  • Activated Carbon Filter
  • Wall Mount Kit

We've got you covered

  • Large particles
  • Dust particles
  • Particles that can carry bacteria
  • Particles that can carry viruses
  • Dander
  • Pet Hair
  • Pollen
  • Dust mites
  • Mold & fungi
  • Exhaust fumes
  • Cooking odors
  • Household odors
  • Pet odors
  • Greenhouse gases
  • Tobacco smoke
  • Household VOCs
  • Wildfire VOCs

WARNING - This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Clicke here for more information on California's Prop 65.

  • Air outlet on top
  • Filter replacement indicator
  • Speed indicator
  • Mode / filter reset button
  • Mode indicator
  • Negative ions
  • Power button
  • WiFi indicatorSleep Lighting indicator
  • Light sensor
  • Air quality indicator
  • Odor sensor
  • Mood light / ion control
  • Air intake around front panel
  • Floor stand is removable for wall mounting
  • Speed / WiFi button

Manuals and Guides


What's in the box?

  • MinusA2 Air Purifier
  • Remote Control
  • Pre-Filter
  • Medium Filter
  • BioGS HEPA Filter
  • Customized Filter
  • Activated Carbon Filter
  • Wall Mount Kit


1. Test samples: Aspergillus niger, Penicillium citrinum, Chaetomium globosum
2. Test samples: type A influenza virus(H1N1), Escherichia Coli, Staphyllococcus aureus
3. Test data shows our HEPA filter (brand new or like-new) can trap particles 0.3 microns in size at 99.97% efficiency, and our air purifiers are able to remove 99.9% of 0.1 micron-sized particles from the air. Research data shows True HEPA-rated filters can trap particles less than 0.1 microns in size at higher than 99% efficiency. For more info, see, pp.11–21.
4. Calculations of savings are based on energy consumption and filter replacement costs of the MinusA2 SPA-780A versus the Dyson Purifier Cool TP10 with 24/7 usage.
5. All energy and filter cost calculations are based on 24/7 usage on the highest fan setting. Information for each model is based on the official sources.
6. Based on average ceiling height of 8 feet when the air purifier is operating on the highest fan speed.
7. ACPH = Air Changes Per Hour
* Free Shipping to Contiguous US. Learn more
Photo illustration only and do not represent actual filter performance.
†† Based on energy cost of 26.72 cents per kWh. Sources: U.S. Energy Information Administration, October 2023, California Residential.
The Germ Defense filter physically traps bacteria, mold, and particles that carry viruses, thereby reducing such microbes in the air.

Free Shipping & Returns

More than 90% of the orders placed by noon EST on weekdays will be processed and shipped the same day or the following business day. Please note that for non-qualified items and shipments outside of the U.S., extra transit time may be required. For more details, please visit our Free Shipping & Returns page.

Qualified Items:

  1. BioGS 2.0
  2. MinusA2
  3. A3

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