Whynter AFR-425-SW Eco-Pure HEPA System Air Purifier Review

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Whynter AFR-425-SW Eco-Pure HEPA System Air Purifier








Ease of Use


Value for Money



  • Sleek, slimline design
  • Sturdily built
  • 5-stage air purification
  • Convenient features
  • Low energy consumption


  • Loud on fan speed 6

Product Review: Whynter AFR-425-SW Eco-Pure HEPA System Air Purifier

Whynter AFR-425-SW Eco-Pure HEPA System Air Purifier

Company: Amazon

Price Range: $250 – $300

Feedback: Read Consumer Reviews on the Whynter AFR-425-SW Air Purifier

Who Would Buy This: Those shopping for a high-quality, energy efficient HEPA air purifier that delivers advanced 5-layer air purification for areas up to 550 square feet.


  • 5-in-1 HEPA Filtration System
  • 6 fan speeds
  • 8 hour timer
  • Sleep mode
  • Air quality sensor
  • Remote control
  • Design

    Whynter’s designers have done a stellar job with the design of this air purifier. The use of nice curves opposed to typical straight edges gives it an elegant, modern look.

    The unit itself is compact in size and built to a high standard with quality lightweight plastic, ensuring a solid construction and a total unit weighing just 15 lbs. Its slim-line design means this unit has a depth of just 10 inches so it can fit snugly into most areas of your room without problem. There is an integrated handle at the back of the unit to allow for easy lifting from one room to another.


    The AFR-425-SW comes outfitted with a topside control panel that features touch button controls, which allow for easy and intuitive control over the range of settings.

    Key features include;

    8-hour timer – The timer mode lets you set the unit to turn off automatically after a period of either 2, 4, 6 or 8 hours.

    Quick Smoke Removal – This mode runs the air purifier at it’s highest fan speed setting to help quickly eliminate odors such as tobacco smoke from your room.

    Air Quality Sensor – Monitor the air quality of the room. This icon lights up Green, Blue or Red to indicate how clean your air currently is.

    The included remote control features buttons to control the six main functions, so you can conveniently operate the unit from wherever you are in the room.

    Whynter AFR-425-SW Eco-Pure HEPA System Air Purifier Top View

    Advanced 5-in-1 HEPA Filtration

    An air purifier is of course only as good as the filtration system at the heart of it. The AFR-425-SW features an advanced 5-in-1 HEPA Filtration System that uses three separate filters, but features five layers of filtration so most types of impurities are filtered from polluted air.

    The first stage uses a pre-filter which traps large particles that may linger in your air like pet hair, fungus and lint.

    The second and third stage use a 2-in-1 activated carbon and HEPA filter. The carbon filter has the role of absorbing harmful chemicals often found in common household products, cooking fumes, smoke and other odors which can potentially lead to respiratory problems. The HEPA filter efficiently removes 99.97% of airborne pollutants as tiny as .3 microns. This includes household dust, allergens and pollens.

    At the fourth stage, air passes through a Photocatalyst filter. This uses a process known as photocatalytic oxidation which destroys approximately 99 percent of organic contaminants like bacteria, viruses and mold.

    In the final stage, there is a UV Wave Bulb. This uses ultraviolet light which is highly effective for breaking down organic molecular bonds. This greatly reduces things such as bacteria, fungi and viruses which often linger in the air.


    Despite it’s wide array of filters, Whynter have made this air purifier easy enough to maintain.

    The manufacture recommends replacing the 2-in-1 HEPA and carbon filter every 4-6 months to maintain optimal filtering performance. These filters are currently sold on Amazon.

    The UV bulb provides 6,000 hours of usage before it needs to be replaced.

    There are only two filters which need cleaning periodically.

    The Photo catalyst filter should be vacuum cleaned every 6 months using a nozzle or brush attachment on a low power setting to prevent damage to the filter.

    The non-reusable pre-filter needs to be washed depending on the air quality in your room. Simply wash it under a tap running lukewarm water for 2-3 minutes then leave it to dry for 12-24 hours before reuse.

    Manual: Whynter AFR-425-SW manual

    Guarantee: 1-year limited warranty.


    The Whynter AFR-425-SW is an excellent quality air purifier that is well equipped with many smart features and a diverse set of filters, all in an impressively sleek & compact, rugged unit.

    It has a superior level of air filtration than your average air purifier, so almost all air purification needs are catered for. It’s low energy usage of 65 watts is another great plus point that consumers like.

    Overall, this is a winner from Whynter.