Winix 5510 Air Purifier
The Winix 5510 is the official successor to the discontinued 5500-2, adding WiFi app control and a stronger 253 CFM CADR while keeping the proven HEPA + PlasmaWave filtration combination that pet owners have trusted for years.
via Amazon.com
Check Price at AmazonAs an Amazon Associate, we may earn from qualifying purchases at no extra cost to you.
- +True HEPA captures 99.99% of particles including pet dander, with auto mode that responds in real time to pet activity
- +WiFi app control and built-in air quality sensor — meaningful upgrades over the discontinued 5500-2
- +Carbon pellet filter effectively neutralizes pet odors and VOCs, with annual filter costs around $50
- −PlasmaWave technology generates trace ozone, though it can be disabled
- −Louder than the 5500-2 at maximum speed (65.7 dB) and lacks the predecessor's washable carbon filter
- −App lacks the depth of features found in competing smart purifier apps
The Winix 5510 is the direct successor to the widely recommended Winix 5500-2, which Winix America discontinued in the US and Canada in May 2025. Released in late 2024, the 5510 retains the filtration formula that made the 5500-2 popular while adding the smart connectivity features that its predecessor notably lacked. The four-stage system starts with a washable mesh pre-filter that catches larger particles like pet hair, followed by a True HEPA filter capturing 99.99% of airborne allergens down to 0.01 microns — including pet dander, dust mite particles, pollen, and smoke. A carbon pellet filter handles odors from cooking, pets, and household chemicals, and PlasmaWave technology breaks down pollutants at a molecular level for a final layer of treatment. The AHAM-verified CADR of 253 CFM covers rooms up to 392 square feet effectively, an improvement over the 5500-2's 232 CFM and 360 sq ft rating. At its quietest speed the 5510 operates at 23.5 decibels — near-silent — and the built-in light-automated sleep mode dims the unit and slows the fan automatically when the room darkens. The WiFi-enabled Winix Smart App provides remote monitoring and control, real-time air quality data, and scheduling, addressing the most common request from 5500-2 users. A color-coded LED indicator on the front displays current air quality at a glance, and auto mode adjusts fan speed in response to detected pollutant spikes. User feedback from Amazon reviewers — who have given the 5510 4.6 stars across more than 30,000 ratings — consistently praises its responsiveness to pet dander and smoke, its quiet low-speed operation, and the improvement in smart features. The most cited trade-offs compared to the 5500-2 are a louder maximum speed (65.7 dB vs 55.3 dB) and the removal of the washable AOC carbon filter in favor of the non-washable pellet version. Annual filter costs of approximately $50 are lower than the 5500-2's $65, partially offsetting the loss of the washable filter. PlasmaWave can be switched off if avoiding trace ozone is a priority. Backed by a 2-year warranty and Energy Star certified, the Winix 5510 is the strongest current choice for pet-owning households who want an air purifier that responds intelligently to their environment.
Last updated:
James has reviewed consumer electronics and gadgets for over 6 years. He specializes in audio equipment, cameras, and smart home devices.
Last updated:
Winix 5510 Air Purifier – FAQs
Yes, for most buyers. The Winix 5510 Air Purifier stands out for: True HEPA captures 99.99% of particles including pet dander, with auto mode that responds in real time to pet activity and WiFi app control and built-in air quality sensor — meaningful upgrades over the discontinued 5500-2. The main trade-offs are PlasmaWave technology generates trace ozone, though it can be disabled. Check our full Electronics and Gadgets comparison for alternatives.