Dyson Air Purifier Reviews and Buying Guide 2021

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Best for Allergens & Dust

1. Dyson Pure Cool DP04

To beat allergens in your home, a multi-front attack is needed. That’s what the DP04 delivers using Dyson’s latest allergy-fighting technology.

Reason for the Choice:

Room Size: Dyson is frustratingly vague about room sizes. The company simply calls this a “Large Room” air purifier.

In our testing, we’re confident it will clean a room very well to 750 square feet (35x20, e.g.).

Features:

Features Rating: 5 – Everything for performance and convenience.

Filter Rating: 4.5 – True HEPA and Carbon. There’s no pre-filter to extend the life of the HEPA filter.

Efficiency Rating: 3 – Due to the more powerful fan, this unit uses more electricity than most air purifiers and is not Energy Star certified.

Quality Rating: 4 – With these prices, it should be a 5, but some users find that their fan fails before the warranty period or is louder than expected.

Overall Rating: 4.125 out of 5

Best for Small Rooms

2. Dyson Pure Cool Me BP01

This unit is designed to purify the air immediately surrounding you while optionally keeping you cool too.

Reason for the Choice: Well, it’s the ONLY small-space Dyson, but it has worthy filtration and performance features too.

Room Size: Less than 100 square feet.

Features:

Features Rating: 4.5 – About average for personal models – no remote, WiFi or fine-tuned control panel.

Filter Rating: 4.5 – HEPA and activated carbon, but no pre-filter.

Efficiency Rating: 4 – Not Energy Star certified.

Quality Rating: 4 – A surprising number of units, by Dyson standards, have mechanical issues. The problem models are about 10% of all. The warranty is just 2 years.

Overall Rating: 4.25 out of 5

Here’s what’s in the box and how it works.

Best for Large Rooms – Cools Only

3. Dyson Pure Cool TP04

Dyson claims this is “The only purifying tower fan to clean a whole room properly.”

That’s probably right, but there are so few of this type of appliance.

Reason for the Choice: The TP04 has sensors that detect a pollution event – for example, something is burning in the oven or the window has been left open and dirty urban air has filled the room.  

The sensors choose the right fan speed to clean the air, pulling the air into the dual filters for treatment and purification.

Room Size: Large room.

Features:

Features Rating: 5 – Everything for convenience and performance.

Filter Rating: 4.5 – We’d like to see a pre-filter to extend the life of the HEPA.

Efficiency Rating: 4 – Not Energy Star rated.

Quality Rating: 3 – Mediocre. Ratings and reviews are not as high as one would expect from Dyson. The unit is backed by a 2-year warranty. Perhaps that shows a lack of confidence in its durability.

Overall Rating: 4.125 out of 5

Best for Large Rooms – Heats & Cools

4. Pure Hot+Cool HP02

If you like the idea of having warm air blown your way that has first been purified with true HEPA filtration, this unit is one to consider.

Reason for the Choice: A quality space heater plus give filtering of allergens and other pollutants out of the air you breathe.

Room Size: Dyson calls it a “large room” air purifier.

Features:

Features Rating: 5 – Best in class features.

Filter Rating: 4.5 – It lacks a pre-filter, but does have True HEPA and activated carbon filters.

Efficiency Rating: 3 – Space heaters are not an efficient way to heat large spaces.

Quality Rating: 3 – A high percentage (about 22%) of units either fail or do not live up to performance expectations. Many verified users say it is not worth the money.

Overall Rating: 3.875

1. Dyson Pure Cool Air Purifier Series

These units have a fan for cooling, not an air conditioner.

Models and Room Size Rating: There are four models.

Pure Cool Me BP01 is a personal air purifier and fan. It’s really not even rated for a room size, but should serve spaces to about 100 square feet.

Pure Cool TP01 is a large-room air purifier and fan that is not WiFi. It oscillates 70 degrees and has a “Second generation” PM2.5 filter that catches ultra-fine particles.

Pure Cool DP04 is a desktop-size air purifier. Pure Cool TP04 is a tower air purifier. Otherwise, they are identical and suited to large rooms. Features include an Indoor Air Quality/AQ sensor that controls the air purifier’s response with the appropriate fan/cleaning speed. Both use sealed 360-degree glass HEPA filters and oscillate 350 degrees. WiFi, the App and Alexa add convenience.

Filtration: All use True HEPA with an active carbon filter too. None of them use a pre-filter. A pre-filter catches large particles like pet hair, fuzz and dust clumps. Without a pre-filter, these debris goes straight to the main HEPA filter and shortens its effective life.

Since HEPA filters are expensive, it’s costly to get just 3 months from a $50 filter when you could have used it for 6-12 months.

Features: Here’s what you get with these units. See the brief reviews above for details.

Pros: These are feature-rich, high-performance air purifiers that double as fans/air movers in warm rooms.

All models are Certified Asthma and Allergy friendly by the Asthma and Allergy Foundation of America.

The WiFi models make air purification much easier. Just use the app to monitor air quality while you’re not home, and if need, turn on the unit to clean the air before you get there.

Cons: There are two key issues—Cost and Durability.

These are among the most expensive air purifiers we’ve reviewed. What do you get for the extra money? A fan for cooling. That’s what it boils down to. The filtration isn’t better than what you get from most Honeywell or similar models at half the cost.

The old saying is that the more parts something has, the more there is that can go wrong. This seems to fit some Dyson models.

Read reviews for specifics, but a startlingly high percentage have problems – mechanical issues, don’t perform as expected, have trouble with WiFi connectivity, whine loudly or don’t blow very hard (as rated by the user).

Oh, and no pre-filters.

If you’ve enjoyed using a Dyson vacuum or other appliance and like gadget-rich appliances, then sure, you might really like a Dyson air purifier with a fan.

Otherwise, browse our other reviews for brands like Honeywell, which offers solid air purifiers that don’t double as anything else or Winix that really does make technologically impressive air purifiers. If you’ve now decided what you really want is a cheap but functional air purifier, then see our Holmes Review, and select a True HEPA Holmes model.

2. Dyson Pure Hot+Cool Air Purifier Series

These units include a space heater-type element plus or minus 1,500 watts of heat, depending on the model. That’s a very common heating element watt rating.

It’s a combination of air purification, heat and a fan. It’s not off the mark to compare these units to an oscillating tower space heater that happens to contain an air purifier.

Models and Room Size Ratings: There are three models. Before we give them, they are all rated for “Large Rooms”. Dyson doesn’t rate them for specific square footage.

HP01 is the model w/o WiFi. It oscillates just 70 degrees, but that’s not too bad if you place it in a corner. It does come with a remote. A replacement filter is in the box along with a control.

HP02 is also called Dyson Pure Hot+Cool Link. The “Link” means it is WiFi enabled with an App for easy monitoring and control using a smart device. In fact, it is the HP01 with WiFi. Everything else is the same.

At 24” tall, it’s suitable for use on a table, countertop or other above-ground location.

HP04 is the top of the line. It’s also a WiFi air purifier. The HP04 has Alexa voice control. It oscillates 350 degrees for better heat dispersal.

Filtration: True HEPA main filters are supported by active carbon filters that do a better job absorbing odor-causing molecules from smoke, cooking and pets.

There is no pre-filter, and that is a mistake, in our professional opinion. A pre-filter traps large debris that will clog the HEPA filter. Pre-filters are usually washable, so there’s no expense to replace them. A good pre-filter will double the life of your $40-$65 HEPA replacement filter.

Features:

Pros: We’ll summarize these from the Dyson Pure Cool Air Purifier Series, since they are the same.

Cons: Again, a summary of the same issues.