The Dreame AirPursue PM20 Purifies, Heats, Cools and Follows You Around the Room

It's also a space heater and a cooling fan, which is how Dreame justifies a $999.99 list price and a body that stands almost three feet tall. Both of those extras turned out to be genuinely useful, not boxes ticked on a spec sheet. The PM20 isn't flawless. The readout behind its big glass face is small, the remote occasionally ignores you, and the built-in voice control can't hear you over its own top speed. Those are small complaints against a machine that does its main job this well.

Dreame AirPursue PM20 Air Purifier, Heater and Fan - Best 3-in-1 Air Purifier for Large Rooms

The AirPursue PM20 is Dreame's flagship air purifier, a 3-in-1 unit that cleans, heats, and cools from one tall cylinder topped by a motorized spherical head. It's rated at 400 m³/h of clean air for particles and 220 m³/h for formaldehyde, pushes air out through both upward and forward outlets, and uses radar to find people in the room and aim the airflow at them. Seven sensors feed a live readout on the unit and in the Dreamehome app. The unit we tested is the original PM20 (model CVF14A), the version sold through Amazon. Dreame lists it at $999.99, but it was selling for $669.99 on Amazon as we wrote this.

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Who it's for

Homes where the kitchen and living area share the same air, allergy sufferers who want to see exactly what's floating around them, and anyone who would rather own one good machine than a purifier, a tower fan, and a space heater. It suits larger living rooms and open-plan spaces best, and people who like data will get the most out of the sensors and the app. Pet owners get a dedicated Pet mode that boosts airflow to catch hair and dander.

You only need to clean the air in one small bedroom, or you have no use for the heater and fan. In that case the PM20 is more machine, more floor space, and more money than the job calls for. Dreame's own PM10 drops the heater and is rated at 300 m³/h for smaller rooms, and our guide to simpler purifiers built for big rooms at a fraction of the price covers the dedicated options. It's also a harder sell if most of your home is carpeted and you plan to move it between rooms often.

From Red to Green Before the Pan Cools

The test that mattered most to us was the kitchen. We parked the PM20 directly beside the cooking area, ran it through sprays and aerosols around the room, and kicked up dust on purpose to see how it would react. Every time, the readings jumped almost immediately, Auto mode responded on its own, and the air quality indicator worked its way from red or yellow back to green in minutes, not hours.

What we noticed more than the numbers was how the room felt afterward. Cooking smells used to spread through the living room and hang there. With the PM20 running, they clear far faster, and nobody on the couch is coughing through dinner anymore. The bedrooms and the office got the same treatment, and the air in each of them feels noticeably fresher and lighter.

That's what a 400 m³/h CADR and a four-layer filter stack buy you. Larger particles get caught by the outer mesh, the H13 composite filter handles fine dust, pollen, and smoke, the carbon layer works on odors and VOCs, and a manganese dioxide catalytic layer breaks down formaldehyde. Dreame recommends the PM20 for spaces up to 1,690 square feet. We didn't put that figure to a formal test, but in our living room it was never short on power.

Seven Sensors and an App That Explains Them

Plenty of purifiers have a PM2.5 sensor and a colored light. The PM20 tracks PM1, PM2.5, PM10, formaldehyde, TVOC, temperature, and humidity, and in our testing it tracked them precisely. Spray something across the room and the TVOC reading moves. Start cooking and the particle counts climb. Walk away and you can watch them fall in real time.

The Dreamehome app is where that data becomes useful. Each reading comes with a short explanation of what the pollutant is, a benchmark, and a scale showing where your current number sits, so you're never staring at "PM1: 12" and wondering whether that's good. For anyone trying to work out what actually triggers their allergies, that context is worth more than any single spec on the box.

One thing it doesn't measure is carbon dioxide. If stuffy, poorly ventilated rooms are your main concern, you'll need a separate CO2 monitor.

A Purifier Nobody Guesses Is a Purifier

The PM20 is built well enough that you don't feel the need to hide it. The perforated champagne-gold body, brushed metal-look ring, and glossy glass face give it a sleek, modern, slightly luxurious look that suits a nicely finished room. It also gets attention. People notice it the moment they walk in, and almost nobody guesses what it is. The most common first guess is the door of a front-loading washing machine.

We filmed the unboxing and first power-on for our YouTube Short, including the magnetic filter cover and the remote dock.

The small details are where it really earns its price. The remote snaps magnetically to the front of the body, so it never disappears into the couch. The outer mesh is held on with magnets too, so getting to the filters takes seconds. Underneath, hidden casters let the whole thing glide across hard floors with a gentle push, which matters on a unit this size.

Our one design wish is about that big glass face. It looks like it should be a large screen, but the actual readout behind it is small, showing an air quality indicator and a few icons. We'd love to see Dreame use more of that space, or make it a touchscreen. We understand that would push the price up, and the app fills the gap well, but from across the room the readout is easy to miss.

AI Follow Earns Its Place Downstairs

The PM20 uses radar to detect people in the room and turns its motorized head to send clean air toward them. It sounds like a gimmick, but it's a feature we use every day. In the living room and around the downstairs, where we're always on the move, it tracked us smoothly and accurately and kept the airflow pointed where we actually were.

In rooms where you stay put, it makes less sense. In the office and the bedroom we switched AI Follow off and locked the head in a fixed direction, which the app and remote both handle easily. Having both options is the point. The PM20 adapts to how a room is used instead of forcing one behavior on every space.

A Fan That Cools and a Heater That Keeps Up

Combo purifiers often treat the fan and heater as afterthoughts. The PM20 doesn't. The cooling fan genuinely cools a room. It moves enough air to feel it from across the room without turning into a gale, and we often ran it at the top speed of 10. The dual-flow design helps here, with one outlet pushing air up to circulate the room while the head aims the rest forward.

The heater works just as well. Dreame rates it at about three seconds to start blowing warm air, adjustable up to 104°F (40°C), and it warmed a room without any trouble on the days we used it. We've leaned on the fan far more than the heater so far, but it's reassuring to know the same machine will keep earning its floor space once the weather turns.

Close to Silent in Comfort Mode

Dreame rates the PM20 at 32 dB in Comfort mode, and in our bedrooms it was practically off as far as noise goes. Quiet and Comfort are the settings we use at night.

At the other end, speed 10 is clearly audible, but it isn't as loud as we expected for that much airflow. It's a steady rush of air rather than a whine, and it never bothered us enough to turn it down. It is loud enough to interfere with voice commands, though, which is the one place where top speed and the PM20's smart features don't get along.

The App Does It Better Than the Remote

We already knew Dreame's app from testing a budget robot vacuum that empties itself into a compact dock, and Dreamehome is just as good here. It's fast, clean, and lays out every mode, speed, timer, and sensor reading without burying anything. Most days, we reached for our phones instead of the remote because it's simply quicker.

The built-in voice control surprised us. You talk to the purifier itself, and across many attempts it reliably understood us. The exception is speed 10, where you'll have a hard time getting it to hear you over its own airflow. Turn it down a few steps first, or use the app.

The remote is the weak link. It looks great and lives neatly on its magnetic dock, but at times it responded late or didn't register a press at all. It's not a dealbreaker when the app and voice control work this well, but it's the one part of the PM20 that doesn't feel as polished as the rest.

Filters Behind a Magnet, Wearing Slowly

Pull off the magnetic mesh and the filters are right there. Replacing or reinstalling them is about as easy as it gets, and the mesh itself catches hair and larger debris before it ever reaches the main filter. The app tracks each filter's remaining life as a percentage, so you never have to guess.

After more than three weeks of daily use, our composite filter still showed 98% and the carbon filter 95%. Dreame's manual puts the composite filter at 16 to 24 months and the carbon filter at 6 to 12 months, based on 12 hours of use a day, so real-world life will depend on your air and how hard you run it. Replacements cost $99.99 for the high-efficiency composite filter and $59.99 for the activated carbon filter at Dreame's store. That's not cheap, but at the rate ours are wearing, it isn't a frequent expense either.

Quick to Set Up, Then It Needs Its Space

The PM20 arrives fully assembled. Take it out of the box, peel off the protective film, plug it in, and it's running. Pairing it with the Dreamehome app was quick, with one thing to note: it connects over 2.4 GHz Wi-Fi only, so if your router combines both bands under one network name, check your settings before you start. Build quality was excellent right out of the box.

Plan for its size, though. At about 15 inches across and 33.5 inches tall, it takes up roughly the floor space of a small side table, and it's heavy enough that you'll be glad of the wheels. They roll easily on hard floors, so moving it between rooms is no chore, but it's not something you'll want to carry up a flight of stairs every evening.

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