Winix Air Purifier C545 Review Simple Guidance for You

How do you select the most effective air purifier? Do you consider the features and benefits, or do you choose the one that looks best in your living room? Our Winix air purifier c545 review explains what makes them unique and why they might be just what you are looking for.

Before you buy an air purifier, read this Winix air purifier c545 review! Does the Winix C545’s combination of HEPA filtration and odor control work?

Winix Air Purifier C545 Review

 The answer might surprise you. To read our Winix Air Purifier C545 Review, scroll down!

Winix air purifier c545 – With PlasmaWave Technology

Winix Air Purifier C545

 Winix Air Purifier C545 Review

Key Features:

  • Remote control method
  • 360 square feet of floor space
  • 23.3 x 15.4 x 11 inches in size
  • 15.97-pound weight
  • Compatibility with WiFi and Smart Apps
  • Three different fan speeds
  • 27 decibels of noise
By feature
Sleep mode4.7 rating
Value for money4.7 rating


  • PlasmaWave technology and WiFi connectivity.
  • Air quality indicator lights and high fan power.
  • Pre-filter is washable.
  • Filtration in four stages.
  • High performance and energy star rated.
  • Air quality sensor with intelligence.
  • Mode of automatic sleep.
  • Budget-friendly features.


  • Filter replacement is expensive.
  • Even though the owner’s manual states that it should change the carbon filter every three months.

Winix air purifier C545 – Detailed Analyze

Winix, a well-known Korean brand, has established itself as a reliable and affordable air purifier manufacturer. In this Winix C545 air purifier review, we’ll talk about the air filtration technologies it uses and whether it’s a good investment for you.

The Winix brand is one of the most well-known air purifier industries. It is due to Winix’s patented PlasmaWave technology, which can effectively remove many harmful pollutants and odors from the air.

The Winix C545’s PlasmaWave technology is why many people choose it and what sets it apart from the competition. The Winix C545 air purifier is also one of the few that earned the energy star label. This unit will clean the air in your home effectively, but it will also save you money on energy costs.

1- Winix C545 4 Stage Air Purifier

We will discuss the performance of the Winix C545 air purifier in this review. The Winix used a four-stage air filtration system C545. The following filters are included in this unit:

  1. Pre-filter – The fine mesh pre-filter captures large contaminants such as hair, dust, and dirt particles. Because this is a permanent filter, you can clean it repeatedly without replacing it.
  2. Activated Carbon Filter – This filter reduces odors in the home caused by cooking, pets, smoke, and office equipment. It can also remove harmful volatile organic compounds (VOCs), invisible toxins found in most homes and offices, from the air.
  3. True HEPA Filter – This powerful filter traps microscopic pollutants in the air. Pollen, mold and mildew, germs, smoke, and pet dander are all trapped 99.97 percent down to 0.3 microns in size.

  • Winix PlasmaWave – This is a patented Winix technology that boosts the air purifier’s cleaning power. PlasmaWave attacks pollutants such as viruses, bacteria, germs, odors, and chemical gases with natural water vapor. PlasmaWave is the safest way to break up harmful pollutants, making the air you breathe safe and clean. It’s not found in any other brand.

2- Performance and Coverage

The Winix C545 Air Purifier has an AHAM room size of 360 sq. ft. due to its CADR rating of 232 CFM. To learn that this air purifier has a 4x ACH rating, allowing it to clean the air every 15 minutes. During our testing, this air cleaner produced noise levels of 28dB at the lowest fan speed and 55dB at the highest setting. It uses 65 watts of power, putting it in the category of Energy Star-certified devices.

3- Usability of Winix-Air-Purifier

The Winix C545 Air Purifier arrives fully assembled and ready to begin the purification process; all we had to do was plug it in and start testing. The control panel is on the top right-hand side and has easy-to-use buttons with clearly labeled functions. It also has two up and down arrows for adjusting the four fan speeds: Turbo, High, Medium, and Low.

4- Control panel for Winix-Air Purifier

The Winix C545 Air Purifier has the following features that improve its usability:

1- Air Quality Display and Smart Sensor

This feature monitors your indoor air quality and displays the current status on the control panel via LED lights.

2- Automatic Mode

The air cleaner will adjust the fan speeds to correspond to the number of pollutants in your indoor environment once it turns this feature on.

3- Check Light Filter

This light will turn on as soon as the HEPA filter needs to be replaced. This feature eliminates guesswork, allowing you to have peace of mind about the status of your filters and their effectiveness.

4- WiFi Connectivity and Winix App

You can get real-time updates on the performance of your unit with these features. Making configurations from your phone is also beneficial.

5- Sleep Mode on Auto

This air cleaner has a light sensor that detects darkness and activates the sleep mode, which creates a quiet environment for optimal relaxation and sleep.

6- Compatibility with Alexa

It astounded us to discover that we could ask Alexa to create configurations without touching the air purifier during our testing.

7- Timer

This feature allows you to set the air cleaner to run for hours before automatically shutting down.

5- Consumption of Energy

The Winix c545 is an energy star-rated air purifier with 65 watts of power. Assuming it runs for 8 hours every day, this air purifier will cost you around 6.5 cents per day, or $23 per year.

6- Winix C545 Sound Level

In recent years, the silent operation has been a critical selling point for Winix air purifiers, and the Winix C545 does not try to deviate from this trend. This air purifier can operate at a decibel level of 28, quieter than a whisper.

Even at its highest setting, the Winix C545 only emits white noise, which can help you sleep better and work more efficiently. If you compare the Winix C545 to other air purifiers in terms of quiet operation, the Winix C545 will undoubtedly win.

7- Setup and Assembly

The Winix C545 air purifier comes fully assembled and ready to use. It will come with a complete filter kit (pre-installed) to get you started. You’ll also find an extra set of carbon filters, good for the first year, and the winix air purifier C545 manual.

It should also be simple to set up. You only need to plug it in and adjust the settings using the control panel on top. If WiFi is enabled, you can also download the Winix Smart app and pair the air purifier with your phone.

8- CADR Rating of Winix C545

An air purifier’s CADR rating indicates its effectiveness in removing common pollutants. The acronym CADR stands for “Clean Air Delivery Rate,” and it’s made up of three numbers: pollen, dust, and smoke. The Association of Home Appliance Manufacturers (AHAM), a third-party tester for air purifier manufacturers, provided the CADR rating. The CADR ratings for the Winix C545 are as follows:

  • 243 dust
  • Smoke Count 232
  • 246 pollen

The higher the number and the closer it is to the coverage area of the room, the more influential the air purifier is at removing these harmful elements. The Winix C545 4-stage air purifier with WiFi and PlasmaWave technology complies with AHAM standards, ensuring a highly effective unit for cleaning indoor air.

9- Warranty and Maintenance

The warranty on the Winix c545 is one year. Apart from timely filter replacements, air purifiers require little maintenance, and this model is no exception. The following are the requirements for replacing the Winix c545 air purifier filter:

  • It is important to vacuum or clean the pre-filter periodically. 
  • Replace the activated charcoal filter every three months.
  • Replace True-HEPA filters every year.

10- Customer Service Winix C545

The Winix Company, founded in 1973, is a true expert in the air purifier industry. They have many headquarters, not only in Korea but also in the United States and Europe. From 9 a.m. to 5 p.m., Monday through Friday, you can reach them by phone or email. If you have trouble getting them by phone, you can email

They sell both new and certified refurbished air purifiers on their official website, with free shipping in the United States only. The Winix Limited Warranty ranges from one year to five years, depending on the product. Winix will repair or replace the product if it fails because of a material or artistry defect determined by Winix during the warranty period. Remember that the warranty will be void if it uses the product for anything other than home or consumer purposes.

Additional Features of Winix C545

The Winix C545 isn’t the first low-cost device to include high-end features. However, instead of using a traditional remote control like the Winix 5500-2, you can control this air purifier with your smartphone. Furthermore, the Winix C545 is Alexa-compatible, allowing you to control the air purifier with your voice.

It also has the advanced Smart Sensor from its predecessors, and an LED indicator on the control panel can tell you precisely what the current air quality status is. Most importantly, you can set the air purifier to Auto Mode and completely forget about it. The Winix C545 will adjust the fan speed based on the environment’s needs.

Thanks to the advanced WiFi Enabled Connectivity feature, you can easily schedule time off for this air purifier and check the indoor air quality index. Finally, there is a filter replacement LED indicator. This feature is essential, but it is necessary.

Who Would Benefit The Most From The Winix C545 Air Purifier?

  1. Pet hair, dander, and odor problems– the Winix C545 have a True HEPA filter that removes up to 99.97 percent of pollutants, including pet dander and hair.
  2. Homeowners in wildfire-prone areas will appreciate this cleaner’s activated carbon filter to eliminate smoke odor.
  3. The first three-speed settings on this Winix air purifier are barely audible for individuals looking for a quiet air purifier.
  4. Anyone looking for a bacteria and virus air purifier will appreciate the C545’s Plasmawave technology, which destroys pollutants at the molecular level. It is, however, possible to turn it off if desired.


We conducted extensive research on Winix air purifiers after reading the Winix air purifier c545 review on Amazon. This Winix air purifier C545 does more than eliminate odors and improve indoor air quality. But it’s also simple to use and has some unique features that set it apart from the competition. This model comes highly recommended if you’re looking for an affordable but effective way to reduce allergens in your home.

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