Fellowes Large Room Air Purifier with HEPA Filter

Last updated date: December 8, 2019

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Fellowes Large Room Air Purifier with HEPA Filter

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We looked at the top Electrostatic Air Purifiers and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Electrostatic Air Purifier you should buy.

Update as February 8, 2022:
Checkout The Best Electrostatic Air Purifier for a detailed review of all the top electrostatic air purifiers.

Overall Take

In our analysis of 203 expert reviews, the Fellowes Large Room Air Purifier with HEPA Filter placed 4th when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

Automatically detects and purifiers the air. Certified asthma and allergy friendly by the Asthma and Allergy Foundation of America Utilizes a True HEPA Filter With Antimicrobial Treatment to safely remove 99.97% of airborne particles including pollen, ragweed & other allergens, viruses, germs, dust mites, mold spores & cigarette smoke. Includes special high performance mode for allergy, cold and flu seasons. Carbon filter reduces odors from a 300 to 600 square foot area.

Expert Reviews

Expert Summarized Score

21 expert reviews

User Summarized Score

747 user reviews

What experts liked

The AeraMax 300 stands out from the rest of the AeraMax commercial family for its massive room coverage. The manufacturer is confident to suggest the room size for this air purifier from 300 square feet to 600 square feet.
- Breathe Quality
The four stage purification process is very easy to describe and it will give any user a nice insight to how this amazing air purifier works and functions.
- Blooming Air
Coming with a 4-stage purification system, this device also has a carbon filter to get rid of odors and catches large airborne particulates. It’s suggested to exchange the carbon filter every 3 months under normal practices. The authentic carbon filter (4 packs) for this model will cost you around thirty dollars. One HEPA and one carbon filter are delivered with the AeraMax 300 Air Purifier.
- HouseholdMe
Easy to operate its controls, carry it, and clean or replace its filter(s).
- Consumer Reports
It’s been certified as asthma and allergy friendly by the AAFA, the Asthma and Allergy Foundation of America. It’s recommended to use with rooms from 300-600 square feet. The machine will automatically flash a light which will indicate when the filters need changing.
- Fresh and Breezy
The fact that the unit comes fully assembled in the box has pleased the reviewers. It is easy to unpack and setup.
- Air Purifier Max
It has an automatic mode which allows it to assess the level of pollution in the air and adapt its operation. This feature makes life easy since no special handling is required. If desired, it is still possible to adjust the device purification intensity because it has four speeds and also Aera + mode for accelerated operation.
- The Air Geeks
As for the design and aesthetic, it has a very simple and minimalist design that focuses much more on clarity, rather than any distinct aesthetic beauty. When you look at the AeraMax 300, you’ll notice that the device is simple and easy on the eyes and that every button and feature is labeled, so you won’t have to guess which button does what.
- Smart Smarter Smartest
Many reviewers comment on how well this air purifier works in their large spaces.
- New York Mag
This purifier offers a four-stage filtration system that offers maximum cleaning for the indoors.
- Top Ten Reviews
One great feature is that it has the air purity sensor, monitoring air quality, automatically adjust the fan speed to keep the air purifier, and the air quality indicator light shows the level of purity of the air in the room.
- Best Gear List
Having been certified by the Asthma and Allergy Foundation of America.
- Pick My Perfect
The Fellowes Aeramax 300 is an excellent capable air purifier that uses true HEPA technology and 4-level filtration. It can remove 99.97% of airborne particles.
- Anxiety Attack Solutions
True HEPA Filter with Antimicrobial Treatment: It safely eliminates 99.97-percent of airborne particles including viruses, dust mites, mold spores, pollen ragweed, and other allergens.
- Ah Joo
Cleans air in 5 different ways to eliminate virtually all allergens, irritants, and pollutants
- All The Stuff
This asthma and allergy-friendly purifier, certified by asthma and allergy foundation of America, comes with a special high-performance mode for taking special care of you and your family and keeps you away from allergies, cold and flu.
- 365 Days Review
The device is simple to use.
- Clean Home Zone
Certified ‘Asthma and Allergy Friendly’ by the AAFA
- AcPulse
he new AeraMax air purifiers are the only such devices in Canada which have been scientifically tested and proven to be Asthma & Allergy Friendly. Investing in a quality air purifier is an essential tool for reducing allergens in your home, helping to minimize asthma and allergy symptoms.
- Canadian Dad
Our most favorite extra feature is the Aera+ mode that is designed for use during peak allergy season. It will be very helpful if you or someone in the house has allergies.
- Cool And Portable
In addition to its Allergy and Asthma Friendly certification from the Allergy and Asthma Foundation of America, this product is AHAM and CARB certified. The AeraMax 300 is also UL listed and Energy Star Certified. This is a good mix of commendations, and it’s always important to look at third party research before choosing an air purifier.
- Pure Air

What experts didn't like

However, if you run this air purifier on highest speed, you will experience the power consumption to be 86 watts, which is even higher than the Winix 5500-2 or Honeywell HPA200.
- Breathe Quality
Expensive filters and the need to replace them every six months
- Blooming Air
The sound it produces during maximum operation can bother some individuals.
- HouseholdMe
Not very effective at removing dust, smoke, and pollen at its lowest speed, which could affect your comfort if you’ll run the unit in your bedroom at night.
- Consumer Reports
One complaint that has been made about the purifier relates to its indicator lights that cannot be turn off. This may be a deal breaker for people who want their room completely black. Complaints have also been made about the HEPA filter which is rather expensive.
- Air Purifier Max
Noise. The noise it generates during intense operation can bother some people
- The Air Geeks
However, this unit uses its PlasmaTrue ionizer to charge particles as they exit the purifier, which may be harmful to sensitive lungs. The ionizer cannot be disabled, so we cannot recommend the AeraMax DX95 to individuals with respiratory problems.
- Top Ten Reviews
Turbo speed setting make a loud noise.
- Best Gear List
Technical faults in the product interrupt its proper functioning.
- Pick My Perfect
Can be quite noisy at maximum fan speed.
- Anxiety Attack Solutions
A little noisy when set to turbo speed.
- All The Stuff
Fails to function after four to six months.
- Clean Home Zone
Some people may find the blue display light on the top of the unit a little off-putting at bedtime (although a strategically placed piece of coloured tape may remedy this).
- AcPulse
It’s a bit pricey.
- Cool And Portable
Replaceable filters add to ongoing cost.
- Pure Air

Our Expert Consultant

Vicki Liston 
Home Improvement Expert

Vicki Liston writes, produces, and narrates “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.

Home improvement and all things DIY have been Liston’s passion since she bought her first house in 2007 and she started making video blogs in 2014. She’s performed hundreds of DIY projects, from small ones to major, wall-smashing renovations and can teach you how to make a trendy DIY barn door for cheap. The proceeds earned from “On The Fly…DIY” are donated to no-kill animal shelters and rescue organizations. You can find her show on Prime Video.

An Overview On Electrostatic Air Purifiers

There are pollutants in the air all around you. Whether you’re at home, in your office or spending some time on the lake, you’re breathing allergens throughout the day. If you don’t suffer from allergies or other health conditions, you may not even notice it, but it still affects how you feel. In fact, just breathing polluted air can decrease your lung function and possibly increase your risk of developing health issues.

A good air purifier can help with that. But there are so many different methods of filtration, it can be easy to feel out of your element as you’re shopping. An electrostatic air purifier uses the power of static electricity to attach air particles to the filter. You’ll then be required to clean the filter periodically to keep your purifier’s interior clean.

HEPA air filters, on the other hand, use a disposable filter to capture the particles. Short for high-efficiency particulate air, HEPA filters can capture more particles at a quicker rate than electrostatic purifiers. However, the technology between these two types of filtration systems isn’t quite so straightforward. Both electrostatic and HEPA purifiers have a wide range of filtration methods, some of which are more effective than others.

“The precursor to HEPA filter air purifiers, electrostatics clean the air by charging airborne particles with static electricity as they enter the unit and then attracting those particles to a collector while the cleaned air continues out and back into the room,” says Vicki Liston, writer, producer and narrator of “On The Fly…DIY,” an award-winning home improvement show. “Even though HEPA filters have since entered the scene and boast a 99% removal of all air particulates larger than .03 microns, electrostatic air purifiers arguably still hold their own as an affordable alternative. They are also eco-friendly as you won’t be discarding filters to be sent off to a landfill.”

Purifiers are often seen as useful for helping those with allergies, but they actually can be useful in any indoor space. In addition to helping ensure your air is pure and breathable, they can also keep odors at a minimum, which is especially useful if you have pets or regularly cook meals. If you have an area where cigarette or cigar smoke is an issue, a purifier can help with that, as well.

One area where HEPA typically excels compared to its non-HEPA counterparts is in eliminating the smallest particles from the area. HEPA filters can usually get rid of the most microscopic filters, while other purifiers struggle. Also, look for technology that can convert ozone and smog into oxygen for even better-quality air.

The Electrostatic Air Purifier Buying Guide

  • As you’re weighing HEPA filtration against electrostatic air purification, there are benefits to electrostatic units. One of the biggest is that you don’t have to fuss with disposing of and purchasing new filters. Simply clean the filter as directed in the user manual.
  • But, as Liston explains, electrostatic air purifiers do have a downside in that some produce ozone. If you have asthma issues or sensitive lungs, you may find your issue is exacerbated by the very thing you’ve purchased to fix it.

“This ozone — also dressed up as ‘activated oxygen’ in some product descriptions — can react with chemicals commonly found in households, like cleaners, which will also cause lung irritation,” Liston says. “I don’t recommend electrostatic air purifiers at all for anyone with lung sensitivities, allergies, or asthma. Instead, opt for a HEPA air purifier if you fall into this category.”

  • Before you buy, consider where you’ll be using your purifier. Some are built to handle large spaces while others can only purify the air in smaller rooms.
  • If you’ll be sleeping or working in the room where your air purifier will be set up, make sure you choose one that operates quietly. You may, however, prefer an air purifier that emits white noise, similar to a fan.
  • Another benefit of electrostatic air purifier is energy consumption. High-powered HEPA purifiers can run up your utility bill, so if you opt for a HEPA unit, pay close attention to energy ratings.
  • Whether your purifier has a filter that needs to be changed or cleaned, an alert can come in handy. Some purifiers also provide alerts related to air quality.
  • Some air purifiers have a night light included, which can be useful if you’re keeping them in a bedroom. However, some lights can be extremely bright. A purifier with a light you can dim or turn off will keep you in control of your environment.
  • Auto-adjustment is a valuable feature in an air purifier. It ideally will be able to detect the pollutants in its surroundings and provide the level of purification necessary.
  • If you do opt for an electrostatic air purifier that emits ozone, avoid confining it to a closed-off small room.
  • To qualify as true HEPA, a filter must pass a test that demonstrates it can clean at least 99.97% of airborne particles that are as small as 0.3 microns. If you suffer from health issues, look for a system that has been certified by the Asthma and Allergy Foundation of America.