Winix 9800

Name: Winix 9800
Brand: Winix
SKU: Winix 9800
Price: 279329 USD
Availability: InStock

Discover the Winix 9800's True HEPA filtration, room coverage, CADR, smart features, noise levels, filter life, energy use, and overall performance.

Coverage

500 ft2 AHAM Verified

HEPA Grade

True HEPA Filter (99.99% down to 0.003 microns)

Noise

26-53 dB(A)

Power

95 W (Maximum Rated Power)

Warranty

2-Year Limited Manufacturer Warranty

App Control

Yes

$279—$329

Key Features

4-Stage: Pre-Filter+Carbon+True HEPA+PlasmaWaveSmart Wi-Fi ControlAuto/Sleep ModeSmart Odor Sensor

Expert Analysis

Full Review

The Winix 9800 is a high-capacity air purifier designed for larger rooms and open-concept spaces, using a four-stage system that combines a washable fine-mesh pre-filter, activated carbon, True HEPA filtration, and PlasmaWave® technology. The True HEPA stage is designed to capture airborne particles, while the carbon filter helps reduce household odors and VOCs. The current manufacturer manual lists a verified room size of 522 square feet, with Smart Sensors supporting automatic fan-speed adjustment based on indoor air conditions. Wi-Fi connectivity through the Winix Smart app also allows remote control and monitoring.

Quick Verdict

Pros & Cons

Pros4 points

Larger AHAM-verified coverage (500 ft²) than the smaller Winix 5510, suited to bigger bedrooms and living rooms
Smart Odor Sensor is a genuinely differentiating feature versus purely particle-focused competitors
Wi-Fi app control with Alexa compatibility
Strong HEPA capture claim (99.99% down to 0.003 microns)

Cons4 points

Highest power draw of the Winix models in this review (95W max), meaning higher running costs
Same PlasmaWave ionization consideration as the 5510 applies here
No dedicated timer function
Heavier and larger than most other mid-tier HEPA units in this review (~19 lb, 23+ in tall)

4 pros50% positive overall4 cons

Technical Data

Full Specifications

Specification	Value
Model Number	Winix 9800
Voltage	AC 120V, 60Hz
AC/DC	AC (Mains Powered)
Weight	~18.7-19 lb (8.5 kg)
Height	23.2 in (58.9 cm)
Width	Width = 11.8 in (30.0 cm), Depth = 16.5 in (41.9 cm)
Warranty	2-Year Limited Manufacturer Warranty
App/Mobile Control	✅ Yes
Timer	No dedicated Timer function
Display Type	LED Touch Control Panel with Air Quality Indicator LEDs
Fan Speeds	4
Room Coverage	500 ft2 AHAM Verified
HEPA Grade	True HEPA Filter (99.99% down to 0.003 microns)
Filter Type	4-Stage: Pre-Filter + Activated Carbon + True HEPA + PlasmaWave
Air Changes/Hour	~4.8 ACH at AHAM-verified room size (calculated)
Noise Level	26-53 dB(A)
Energy Consumption	95 W (Maximum Rated Power)
Annual Running Cost	~$35-70/year (estimated)
Auto Mode	✅ Yes
Best For	Large Rooms, Living Rooms, Bedrooms, Allergies, Smoke, Pet Dander, Wildfire Smoke
Features	4-Stage: Pre-Filter+Carbon+True HEPA+PlasmaWave, Smart Wi-Fi Control, Auto/Sleep Mode, Smart Odor Sensor

Common Questions

Frequently Asked Questions

What is the Winix 9800 designed for?

The Winix 9800 is designed for larger indoor spaces and open-concept areas. Its manufacturer lists a verified room size of up to 522 sq. ft. in the current manual.

How does the Winix 9800 Air Purifier filter indoor air?

It uses a four-stage system consisting of a pre-filter, activated carbon filter, True HEPA filter, and PlasmaWave® technology. The carbon stage helps reduce odors and VOCs, while the True HEPA filter captures airborne particles.

Does it have automatic air-quality control?

The unit has a Smart Sensor that monitors air conditions and can adjust the fan speed automatically in Auto Mode. It also includes an air-quality indicator and Sleep Mode.

How often do the filters need to be maintained or replaced?

The pre-filter can be cleaned, while the activated carbon and True HEPA filters require replacement according to the manufacturer's maintenance guidance. The current manual notes that replacement intervals can vary with the environment, so users should follow the filter indicator and manual instructions.

Does the Winix Air Purifier 9800 support Wi-Fi control?

The 9800 supports Wi-Fi connectivity through the Winix Smart app, allowing users to control and monitor the unit remotely. It requires a compatible 2.4 GHz-or-newer wireless router and supported smartphone operating system.