Fellowes AeraMax100/ DX5 Air Purifier Review In 2022: Less than $100!

Little do people know that indoor air is 5-10 times more polluted than outdoor air. While good ventilation will help improve indoor air quality, an air purifier would be the ideal solution to reduce airborne pollution and Fellowes AeraMax DX5/ 100 can be the link. It is very effective at capturing the influenza viruses from indoor air based on independent testing. At a fraction of the cost, what is the tradeoff for this tower air purifier? Does it have enough capacity to clean the air of an entire room? Find out more in our Fellowes AeraMax 100 review.
online price (US)**
±N/A $$$/ 7

(annual filter cost ±60)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.
` The indicated online price guides as follows: $ = under $50, $$ = $50-100, $$$ = $101-200, $$$$ = 201-300, $$$$$ = $301-400, $$$$$$ = 401-500, $$$$$$$ = over $500.

Fellowes AeraMax100/ DX5 Specification

ProductFellowes AeraMax100/ DX5
7.3 x 27.3 x 8.5 in
(18.5 x 69.3 x 21.6 cm)
Weight9.9 lb (4.5 kg)
Coverage (up to)100 sq. ft. (9 m2)
Airflow speed
Dust free (CADR)65 cfm (110 m3/h)
Pollen free (CADR)75 cfm (127 m3/h)
Smoke free (CADR)68 cfm (116 m3/h)
Humidifying(H) speed
- Lifespan
- Replacement cost ($)
HEPA filter
- Lifespan
- Replacement cost ($)
True HEPA Filter 9287001
1 year
+- 39.99
Carbon filter
- Lifespan
- Replacement cost ($)
Carbon Filter 9324001 (4 pack)
3 months
+- 29.99
Ionizer/ TechnologiesPlasmaTRUE technology
UV-light/ PCO
Other filter
AeraSafe antimicrobial treatment
All-in-one filter
- Lifespan
- Replacement cost ($)
Optional/ Addon
Noise level
Power usage level37 - 51 W
Timer/ Scheduler
SensorsAeraSmart Sensor
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty3 years
Email/ Phone support

Key Features

  • 4-stage hospital-type filtration
  • Carbon filter
  • True HEPA filter (99.97% efficiency rate/ down to 0.3 microns)
  • AeraSafe antimicrobial treatment
  • PlasmaTrue Technology
  • AeraSmart Sensor (for air quality detection and Auto mode)
  • 3 fan speed with Aera+ mode (Allergy setting with 35% higher turnover rate than low speed)
  • 3 years manufacturer warranty

Design And Usability

Fellowes AeraMax100/ DX5 dimension
7.3 x 27.3 x 8.5 in
(18.5 x 69.3 x 21.6 cm)
Fellowes AeraMax100/ DX5 weight
9.9 lb (4.5 kg)

One of the best cheap air purifiers without much compromisation. At 7.3 inches in depth, 27.3 inches in height, and 8.5 inches in depth, Fellowes AeraMax DX5/ 100 is a modern designed, slim tower air purifier that takes up very little interior space. The plasticky-built body is well fitted with no uneven gaps found in some cheaper models. The air inlet is located at the side that offers comprehension purification without impeding the airflow distribution. At only 9.9 pounds, you can easily grab the back handle and carry it around for room to room purifying.

Moving to functionality, Fellowes AeraMax DX5/ 100 is super easy to use thanks to the front blue digital display. Simply press the button to select your desired fan speed, Auto or Aera+ mode that removes greater allergens, germs, bacteria, and viruses in the air. There is also an air quality indicator and filter change indicator that will remind you to replace the filter when the time is up.

To recap on Fellowes AeraMax DX5/ 100 specification, you have a 4-stage PlasmaTRUE filtration with True HEPA filter, 3 fan speed with Auto mode, AeraSmart Sensor with filter change indicator, and digital display with AQ indicator. Fellowes AeraMax is also UL listed, allergy and asthma-friendly certified, AHAM/ CARB approved, and comes with 3 years warranty that covers all manufacturing defects.

Airflow, Coverage, And CADR

Fellowes AeraMax100/ DX5 coverage
Purifying coverage
100 sq. ft. (9 m2)
Fellowes AeraMax100/ DX5 fanspeed
Being a tower air cleaner, Fellowes Aeramax 100 /DX5 comes with a modest air cleaning output that is suitable for all types of room. At max speed, it can cover up to 100 square feet of space with decent air changes per hour. For small spaces, you can adjust the 3 fan speed to get a balance between the air performance and noise level. Unlike most cheap air purifiers in the segment, Fellowes Aeramax 100 support Auto mode thanks to the built-in AeraSmart Sensor. In auto mode, the air cleaner will automatically set to higher fan speed when high airborne pollutants are detected and revert back to low when the air is clean. No sleep mode is available due to the lack of a light sensor.
Fellowes AeraMax100/ DX5 dust CADR
65 cfm (110 m3/h)
Fellowes AeraMax100/ DX5 pollen CADR
Pollen CADR
75 cfm (127 m3/h)
Fellowes AeraMax100/ DX5 smoke CADR
Smoke CADR
68 cfm (116 m3/h)
Like the airflow delivery rate, Fellowes AeraMax100/ DX5 can swiftly remove allergens in tight spaces. Clean air delivery rate or CADR shows how fast the air cleaner can clean the air within a specific room size. Anticipate a clean air delivery rate of 65 cfm for dust, higher 75 cfm for pollen, and 68 cfm for smoke. Best used in small room sizes like bedroom, kitchen, walk-in wardrobe, office, or studio.

Recommended Read

Filters And Performance

Despite having a smaller tower body, Fellowes AeraMax100/ DX5 is fitted with a conventional 4-Stage purification system. The first stage charcoal pre-filter traps large contaminants like dust, hair, lint while also remove smoke, toxic fumes, and smelly odor. Next, the True HEPA filter captures 9.97% of fine particles as small as 0.3 microns i.e. mold, pollen, pet dander, bacteria, and viruses. The HEPA filter is also coated with AeraSafe antimicrobial treatment that prevents microorganisms' growth on the filter. Finally, the PlasmaTrue ionizer can generate an ionized field that merges positive ions. The diffuse ions will merge and pull positive ions pollutants down for the filter to capture. During our test, the comprehensive filtration mange to improves our indoor air quality within a few hours of runtime. Not bad for an air cleaning device that costs less than 100 bucks.

Noise And Energy Usage

Fellowes AeraMax 100 air purifier is fairly silent given its moderate airflow output. Expect virtually zero noise at low speed, bearable noise at medium speed, and white noise at high speed. Since there is no sleep mode available, we suggest leaving the air purifier in sleep mode for a peaceful night sleep. For general use, set it to auto mode and let Fellowes AeraMax 100 decide what is the best mode for you. As for power usage, Fellowes AeraMax 100 consumes 37 watts of electricity at low speed and 51 watts of electricity at high speed. With 12 hours of operation, the average electric cost will be around $0.07 dollars per day, $2 a month, or $24 a year. Not Energy Star Rated but Fellowes AeraMax 100 will not stack up much on your electricity bill if Auto mode is enabled by default.

Noise TypeDecibels
Breathing10 dB
Rustling leaves20 dB
Whispering/ Quiet library30 dB
Light rainfall40-50 dB
Conversation50-60 dB
Vacuum cleaner/ Hair dryer/ Washing machine65-80 dB
City traffic80-90 dB

Pricing And Maintainence Cost

Fellowes AeraMax100/ DX5 MRSP/ RSP
Fellowes AeraMax100/ DX5 annual filter replacement cost
Annual Filter Cost
+- 60
^ Replacement filters/ estimated cost
For around 120 after discount, Fellowes AeraMax100/ DX5 tower air purifier is quite a bargain as it comes with a True HEPA filter and a dedicated carbon filter. Most competitor models will cost more yet bundled with a poorer filtration. As for the upkeeping, the filter replacement cost is on the lower tier at around 60 dollars annually. We highly recommend replacing the filter according to the service internal to maintain the filtration performance.
Unlike some competitor brands, there is a very limited place you can buy Fellowes AeraMax100/ DX5 air purifier. Retailers like Costco, Walmart, HomeDepot might carry the brand but not the air purifier. The official website does not have an e-commerce store last we checked, so naturally online retailer like Amazon is the best place to go. You will enjoy a good discount, free shipping, 30 days return policy, and bundled deal. Both colors are also available in Amazon so do check it out.

Fellowes AeraMax100/ DX5 VS The Challengers

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Honeywell HFD-120-Q

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Final Thoughts On Fellowes AeraMax100/ DX5

Fellowes AeraMax100/ DX5 is a good tower air purifier and a high 90% of 4-5 stars reviewers agreed with us on Amazon. Scanning through the 1000+ genuine ratings online, most users are happy that the air purifier manages to curb down their cough, morning sinus, and nasal congestion due to bad air. Others are happy that they only paid less than 100 dollars for a genuine HEPA air cleaner. A few users also praise that their indoor air smells fresher with Fellowes AeraMax 100 around. As for the meager 5% 1-2 stars complaints, most people feel no changes or no improvement in their air quality. A few criticized the lack of a dedicated pre-filter or they received a broken unit. Ignoring all that, Fellowes AeraMax100 or DX5 is an affordable air purifier for a customer that does not need something exceptional. It can help with your on-going allergy issue if is used in the right spot.


  • Slim tower profile yet manage to squeeze a 4-stage filtration.
  • Low entry-level price especially after online discount.
  • Packed with the same AeraSmart air quality sensors with indicator and Auto mode.
  • Use genuine True HEPA filter rather than lower grade HEPA-type filter.
  • Additional AeraSafe antimicrobial treatment on the HEPA filter that inhibit bacteria growth.
  • Optional PlasmaTrue technology that works exactly like an ionizer.


  • Below average CADR and purifying coverage.
  • No dedicated pre-filter to compliment the True HEPA and carbon filter.
  • Front blue indicator light is not dimmable in any ways.
  • Lacks adjustable louver and Energy Star rated found in DX55/ DX95.
Fellowes AeraMax100/ DX5 Air Purifier

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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