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The RabbitAir BioGS 2.0 Air Purifier has a comprehensive filtration system and impressive allergen removal abilities. By the end of this review, you will know everything you need to know to decide whether this is the choice for you.

We look at the filtration system, special features, maintenance requirements, pros, cons, and FAQs. 

An attractive unit with a great warranty   

The RabbitAir BioGS 2.0 Air Purifier is an attractive model with sleek curves and a fresh, white aesthetic. It is reasonably large and conspicuous, so don’t expect it to tuck away unseen. However, the color scheme is neutral and the overall aesthetic is pleasant so it won’t ruin the decor of your room or apartment. 

  • Size: 22.2 x 16.6 x 9.8 inches 
  • Weight: 16.8 pounds 
  • Recommended positioning: on the floor 
  • Covering area: 550 square feet for normal usage, 275 feet for people with severe allergies. This is because a smaller room can be cleared more thoroughly than a larger room, removing the maximum amount of allergens which can trigger an allergic reaction in people with very sensitive systems when it comes to allergies.
  • Noise: 22.8 to 48.6 decibels 
  • Energy: 5 to 29 watts, Energy Star rated  
  • Warranty: 5 years, an impressive warranty considering many other air purifiers come with a warranty of 1-2 years

The BioGS 2.0 has a CADR (clean air delivery rate) of 162 for pollen, 149 for dust, and 136 for smoke. CADR refers to the volume of clean air the unit can release into the air. It is measured in cubic feet per minute (CFM). 

Quiet operation  

The BioGS 2.0 is widely regarded as being quiet on the lower fan speeds, and just audible on the highest fan speed. For very noise-sensitive people, the higher fan speeds will be too loud in a silent room or during the night.

We recommend switching to speed 1 or 2 at night, then using the Auto Mode during the day so the unit can change the speed according to the air quality. The higher fan speeds have been described as “white noise” which is pleasant for some. 

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Is it easy to operate?

Yes, thanks to the main control button which turns the machine on, off and adjusts the fan speeds and mode. The “interface” control panel features lights to indicate the status of the unit (fans, mode, air quality). However, these lights cannot be switched off which can be a bother for people who are sensitive to light at night. 

Notable features 

5 fan speeds: low fan speeds for quiet operation at night, with higher speeds for fast and effective air filtration to quickly clear strong odors or an influx of dust. 

Timer: set the machine for four, eight or twelve-hour increments.

Air quality indicator: you can change the air quality sensor sensitivity (low, medium, and high) depending on if you want the unit to switch the fan speed automatically. For example, if you want the unit to change fan speeds at the slightest change in air quality, set the sensitivity to high. When the pollution level changes, the control “interface” will light up temporarily, if the unit is set to Auto mode. 

Auto mode: the fan speed adjusts according to the quality of the air as determined by the air quality sensor.

Remote control: turn the unit on/off, change the fan speed, turn the ionizer off/on, turn the Auto mode off/on, set the timer (four, eight or twelve hours).

Filter life light: lets you know how long it’s been since the filters were last changed. There is a filter reset button which sets the lights back to the beginning after each filter change. 

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Filtration System Review

The BioGS 2.0 has a 4-stage filtration system, which is a step-up from most air purifiers which offer 3 stages. 

Pre-filter: a washable filter that captures large irritants and particles so the carbon and HEPA filters can stay cleaner for longer. 

Activated carbon charcoal filter: neutralizes odors and captures smoke, chemicals, and gasses. 

True-HEPA filter: a true-HEPA filter that captures 99.97% of allergens as small as 0.03 microns. Impressively, the BioGS true-HEPA filter stops bacteria, mold, and viruses from growing in the filter. 

Ionizer: this produces negative ions that attach themselves to allergens, causing them to fall to the floor or surfaces, ready to be wiped or vacuumed away. This does create very, very small amounts of ozone, but far below the standards set by the California Air Resources Board. You can switch the ionizer off and simply use this unit as a 3-stage air purifier if you prefer. 

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Effectively clears allergens and odors

Many customers have reported excellent improvements in allergy and asthma symptoms since using the BioGS 2.0. The pre-filter and true-HEPA filter work together to capture those key allergens such as pollen, dander, and dust

In terms of odor-reduction, the BioGS 2.0 is an impressive model. The activated charcoal filter succeeds in removing and reducing pet, smoke and food odors. Customers have found the air in their homes to be noticeably fresher after using this unit, even after a mere few days of use. 

Low-maintenance, vacuum-friendly filters

As well as cleaning and maintaining the filters, you need to keep the air quality sensor and the intake/outlet vents. The air quality sensor requires a damp cotton bud, and the vents require a damp towel or cloth. These requirements are minimal and are only necessary every 6 months.

What is the cost per year for filter replacements? Where can I buy filters? 

Filter replacements are a little difficult to find on Amazon, but the cost is mid-range for a set including a true-HEPA filter and an activated carbon filter. 

How often do the filters need to be replaced?

The pre-filter is reusable so it should last you forever if washed and dried regularly and properly. The true-HEPA and charcoal filter should be changed every 18 months and vacuumed every 3 months at least. 

Can the filters be washed?

The pre-filter can be washed. It’s up to you when to wash it, as it depends on how soiled and dirty the filter appears. The HEPA and charcoal filters can be vacuumed but they can not be washed. 

What’s the difference between the RabbitAir BioGS 2.0 and the RabbitAir MinusA2?

The MinusA2 is a more comprehensive model in the sense that it has 6-stage filtration, including a medium filter and a customizable filter that the user can choose. It can be mounted on the wall, as it has a slimline, low-profile construction.

The MinusA2 dims the control panel lights when low light is detected in the room, whereas the BioGS 2.0 lights cannot be switched off. The MinusA2 has a recommended room size of 700 square feet for normal residential use, slightly more than the BioGS 2.0’s 550 square feet maximum.

The great and the not-so-great

The good:  

  • Excellent at clearing odors 
  • Very effectively reduces allergy and asthma symptoms
  • Quiet 
  • Filters can be vacuumed 

The bad: 

  • Lights cannot be switched off 
  • Produces trace amounts of ozone

Final verdict, is it for you?

The RabbitAir BioGS 2.0 is an effective air purifier with true-HEPA filtration. It truly delivers on the promise to remove odors and reduce allergy and asthma symptoms. The cleaning and maintenance requirements are user-friendly and reasonably easy thanks to the vacuum-friendly filters. If you require a quiet, effective and easy-to-use air purifier, this could be a perfect choice.


RabbitAir BioGS 2.0 Questions & Answers

Does the RabbitAir BioGs 2.0 produce ozone?

In short, yes. However, the emissions are far below maximum ozone allowances. The BioGS 2.0 was tested for ozone emissions, and the results showed that only 0.001 parts per million were released when the ionizer was on. This is 50 times less than the maximum allowed by the California Air Resources Board. If you are still worried, you can switch off the ionizer.

What is the “California Prop 65 warning”?

This refers to the chemical called “carbon black” which can be found in the filter frames. Because the frames are not in powder form, they cannot be breathed into the lungs, and therefore there is no real danger. RabbitAir declares this warning for transparency’s sake, but it’s nothing to worry about.

What can I do to dim the lights at night?

The lights cannot be switched off, so you have to improvise. The opaque tape is effective for blocking out the lights without damaging the unit.

Top 3 Tips for Using the RabbitAir BioGS 2.0 Air Purifier

  • Find a space for your BioGS 2.0 that allows at least 2 feet of open space around all sides. This keeps the air intake vents clear, allowing the most effective air circulation. 
  • Be sure to regularly check the air intake vents on the sides as they can quickly become coated in dust. 
  • Don’t rely on the filter change indicator lights for scheduling your filter replacements. Check the filters regularly (i.e at least once a month) and lightly vacuum them to remove built-up dust.