Amazon Renewed
Dyson Pure Cool TP4A Air Purifier Fan: Detailed Spec Analysis
The Dyson Pure Cool TP4A combines True HEPA purification with a bladeless tower fan design, making it a dual-purpose machine that senses pollutants and adjusts airflow automatically. As a Renewed unit, it offers Dyson's premium 2-stage filtration at a lower tier, ideal for allergy sufferers and pet owners who want clean air and cooling in one sleek device.
As an Amazon Associate, we earn from qualifying purchases. This does not affect our analysis or recommendations.
Last updated: . Based on our analysis of 865+ air purifiers.
What Sets It Apart
Key specification highlights based on our analysis.
True HEPA Filtration
True HEPA filter captures 99.97% of particles at 0.3 microns
Auto Mode with Air Quality Sensor
Automatically adjusts fan speed based on real-time air quality readings
Considerations
No WiFi/App Control
Cannot be controlled remotely via smartphone app
Why We Recommend It
- 01.
True HEPA filtration removes 99.97% of airborne particles at 0.3 microns , effective against allergens, smoke particles, and pet dander
- 02.
Activated carbon filter absorbs VOCs, cooking odors, pet smells, and household gases like NO2
- 03.
Auto Mode with built-in air quality sensor continuously monitors and responds to changing air quality levels in your room
- 04.
Bladeless tower fan design delivers smooth, powerful airflow while doubling as a cooling fan for large rooms
- 05.
Compact 8.8 x 8.8-inch footprint at 15.17 lbs fits easily in living rooms and bedrooms without dominating floor space
Considerations
- 01.
No WiFi or app control , you're limited to the included remote and on-unit controls, which means no smart home integration with Alexa or Google Home
- 02.
Multiple customer reports of remote control issues , some units arrive with non-functional remotes, which is a known risk with Renewed products
- 03.
Sleep mode may still produce noticeable noise for light sleepers, and bedroom use at higher speeds is not practical for overnight operation
Technical Specifications
| Feature | Specification |
|---|---|
| Purifier Type | Hybrid |
| Recommended Room | large rooms |
| Filtration Stages | 2-stage |
| Filter Type | True hepa |
| Carbon Filter | Yes |
| Auto Mode | Yes |
| Sleep Mode | Yes |
| Air Quality Indicator | Yes |
| Height | 41.5" |
| Width | 8.8" |
| Depth | 8.8" |
| Weight | 15.17 lbs |
| Oscillation | Yes |
Filtration Technology
The TP4A uses a sealed 2-stage filtration system: a True HEPA filter captures 99.97% of particles as small as 0.3 microns , including pollen, dust mites, mold spores, and fine smoke particles , while the activated carbon layer absorbs VOCs, NO2, household gases, and odors. This combination makes it effective across a wider range of pollutants than single-stage HEPA-only purifiers.
The sealed filter unit is designed so air passes through the filtration media rather than leaking around it, which is a notable advantage of Dyson's engineering over many competitors in this tier.
Noise & Performance
The TP4A projects purified airflow up to 350 degrees throughout large rooms, and customer feedback confirms it moves enough air to cool sizable spaces effectively. In Auto Mode, the unit ramps speed up or down based on real-time air quality readings, which means noise varies , expect a quiet hum at lower speeds suitable for daytime office use, but considerably more fan noise at higher speeds.
Sleep mode dims the display and reduces airflow to its minimum setting, though it may still be audible for particularly light sleepers.
Smart Features & Controls
Controls are handled via an included remote control and on-unit buttons, with Auto Mode, Sleep Mode, and an air quality indicator built in. The air quality sensor continuously monitors the room and displays real-time air quality levels, so you can see when the unit senses pollutants and responds. The notable gap here is the lack of WiFi , unlike Dyson's newer TP07 and TP09 models, the TP4A cannot be controlled via the Dyson Link app or integrated with voice assistants.
Filter Maintenance
Dyson recommends replacing the combined HEPA and carbon filter approximately every 12 months, depending on usage and air quality conditions. The unit includes a filter life indicator that notifies you when replacement is due, removing the guesswork from maintenance scheduling.
Filter swaps are straightforward , the outer housing opens to reveal the cylindrical filter unit, which slides out and is replaced as a single piece with no tools required.
Who Is This Air Purifier For?
Ideal For
- ✓ Allergy and asthma sufferers , True HEPA filtration captures 99.97% of common allergens, and Auto Mode reacts when pollen or dust levels spike
- ✓ Pet owners dealing with dander and odors , the 2-stage HEPA plus carbon filter system tackles both airborne pet hair particles and lingering pet smells
- ✓ practical Dyson fans , Renewed tier gets you Dyson's purification and build quality without the full retail investment
- ✓ Anyone who wants a purifier and fan in one unit , eliminates the need for a separate tower fan during warmer months
Not Ideal For
- ✕ Smart home enthusiasts , no WiFi connectivity means you cannot integrate with Alexa, Google Home, or control it remotely via a smartphone app
- ✕ Light sleepers who need whisper-quiet overnight purification , the TP4A's fan-based design produces more airflow noise than dedicated bedroom purifiers
- ✕ Buyers who need guaranteed reliability , Renewed products carry a small risk of component issues, and customer feedback confirms occasional problems with remote functionality
Setup is minimal , remove the unit from packaging, install the sealed filter cartridge into the base (it clicks into place), attach the tower body, and power on. The purifier begins monitoring air quality levels immediately and can be set to Auto Mode right away.
Run the unit on a high speed setting for the first 30 minutes to cycle out any residual packaging odors and establish a baseline air quality reading
Keep the remote stored on the magnetic holder at the top of the unit to avoid losing it , since there is no app control, the remote is your primary interface
As an Amazon Renewed product, this unit is backed by Amazon's Renewed Guarantee, which typically provides a replacement or refund within 90 days if the product does not meet expectations. This is shorter than Dyson's standard manufacturer warranty, so buyers should verify current coverage terms on the product listing before purchasing.
FAQ
Does the Dyson TP4A actually remove allergens and pet dander from the air?
Yes , the True HEPA filter captures 99.97% of airborne particles at 0.3 microns, which includes common allergens like pollen, dust mite debris, mold spores, and pet dander. The Auto Mode senses pollutants in real time and increases airflow when it detects rising particle levels, so it actively responds during high-allergen periods.
Can I control this Dyson air purifier with my phone or Alexa?
No , the TP4A model does not include WiFi connectivity, so it cannot be controlled via the Dyson Link app, Alexa, Google Home, or any other smart home platform. All controls are handled through the included remote control and on-unit buttons.
If smart home integration is a priority, you would need to look at Dyson's WiFi-enabled models like the TP07.
How loud is the Dyson Pure Cool TP4A at night?
In Sleep Mode, the TP4A reduces airflow to its lowest setting and dims the display for minimal light disturbance. It produces a low, steady hum that most people find acceptable for sleeping, though particularly light sleepers may still notice the airflow noise.
At higher fan speeds, it is considerably louder and better suited for daytime use.
How often do I need to replace the filter and how much does it investment?
Dyson recommends replacing the HEPA and activated carbon filter approximately every 12 months. The unit has a built-in filter life indicator that alerts you when replacement is needed.
Replacement filters are available directly from Dyson and third-party sellers, typically ranging from to depending on the source.
Is buying a Renewed Dyson air purifier worth it compared to new?
Amazon Renewed products are inspected and tested to work like new, and you typically save 20-40% off retail tier. The tradeoff is a shorter warranty period , usually 90 days through Amazon's Renewed Guarantee versus Dyson's standard coverage.
Customer feedback is mixed, with some reporting perfect function and others noting issues like non-working remotes, so factor in the return window.
Does the Dyson TP4A work as both an air purifier and a cooling fan?
Yes , this is a hybrid purifier and fan that projects purified airflow up to 350 degrees throughout the room. Customers confirm it produces enough airflow to cool large rooms effectively.
All air passes through the HEPA filter before being projected, so you get filtration and air circulation simultaneously without needing a separate fan.
Similar Air Purifiers
Sharp
SHARP Smart Air Purifier and Humidifier compatible w/Alexa & Google Asst. Plasmacluster™ Ion Technology & Triple Filtration, incl True HEPA Filter. Covers up to 1,913 sq. ft. for Large Room. KCP70UW
Jafända
Jafända Air Purifier for Home Large Room 3800 ft², APP & Alexa, Ture HEPA Activated Carbon Air Filter, Smart HEPA Air Purifiers for Office Remove Dust Pollen Smoke Allergies Mold Odors Pet Dander VOCs
Instant
Instant HEPA Quiet Air Purifier From the Makers of Instant Pot with Plasma Ion Technology, Rooms up to 1,940ft2, removes 99% of Dust, Smoke, Odors, Pollen & Pet Hair, for Bedrooms, Offices, Charcoal
air+health
Air Health Skye 5 Stage Air Purifier, Features Ultraviolet Light (UVC), H13 True Hepa, Carbon, PCO, Smart Wifi, Auto Mode, Quiet, Removes 99.97% of Particles, Smoke, Mold, Pet Dander, Dust, Odors
You May Also Like
ECOSELF
Air Purifiers for Home Large Room, with Smart Mode, Cover Up to 2200 Ft², PM2.5 Air Quality Display, 22dB Sleep Mode, Aromatherapy with 2X-Purification & 360°Air Outlet, HAP603, Bright White
smokebuddy
Smoke Buddy Camo Personal Air Filter, Orignal
Dyson
Dyson Purifier Hot+Cool™ Gen1 HP10 (White) - Bundle
Membrane Solutions
MS18 Air Purifier for Home Large Room and Bedroom with True HEPA Filter, Quiet Dust Removers, Odor Eliminators for Allergies, Smoke, Pets Dander, Mold, Smell, Pollen
SAIMLOVE
Pure Air - 3 Units-Mini Home Plug-in Air Purifier,Ionizer, Power Saving, Silent Suitable Portable for home, bathroom, living room, bedroom, hotel, pet room, toilet（White)
IQAir
IQAir HealthPro Plus XE Air Purifier - Smart HyperHEPA Filtration for Large Rooms up to 1125 sq ft - Smoke, Viruses, Allergens, Asthma, Mold, Dust, Pets, Swiss Made, WiFi Enabled
Bottom Line
The Dyson Pure Cool TP4A is a solid dual-purpose purifier and fan that delivers genuine True HEPA filtration with auto-sensing capabilities at a Renewed tier. It is an excellent choice for allergy sufferers and pet owners who want Dyson build quality without paying full retail.
Skip it if you need smart home integration or the quietest possible bedroom purifier.
Best for allergy and pet households that want premium 2-stage purification and cooling fan functionality in a single tower unit
Consider alternatives if you need WiFi/app control, smart home integration, or near-silent overnight operation for a bedroom
Check Price on AmazonAs an Amazon Associate, we earn from qualifying purchases. This does not affect our analysis or recommendations.