Benjamin Franklin, never one to mince words, famously warned in Poor Richard’s Almanack back in 1736 that “Guests, like fish, begin to smell after three days.” Ben was wise, but honestly, I think he was being generous. Plenty of us have hosted people who were well past their expiration date by day two.
Now jump ahead three weeks. Your smile is hanging on by dental adhesive, and the odor situation has evolved from “fishy” to “washed-up whale carcass baking in the sun.” In a desperate search for anything short of releasing a raccoon into the guest room, you stumble across this very review – yes, the one you’re reading right now: “Dreame AirPursue PM20 – The Device That Makes Your House Smell Like A House Again.”
And suddenly – you see hope. The kind of hope that feels like divine intervention shining through a sewer tunnel in a Mario game. Will this solve the “unwanted guest” problem? Sadly no. But it can eliminate the fumes they carry in like a biological weapon. Maybe, just maybe, your smile can be real again.
Introducing Your Odor-Obliterating Companion
The first thing that’ll grab your attention about Dreame’s AirPursue PM20 (we’re calling it the PM20 from now on, because nobody wants to say that whole name twice) is its retro-futuristic aesthetic. Picture a 1970s vision of 2025: smooth curves, clean white plastic, and vibes that say “I belong in a sci-fi movie delivering hologram mail.” Add stick-on arms and you’re one step away from EVE from Wall-E—but with slightly wider hips.
Personally, I’ve made peace with the design. The more I use it, the more I love it. As someone who already owned a couple of high-end air purifiers, I can say none of them hold a candle to what this thing can do.
So yeah… PM20 deserves a name.
In honor of its Pixar cousin: I christen it stEVE. (With a capital E for “EVE”, of course.)
Why This Thing Is the Beyoncé of Air Purifiers
Calling the PM20 the Mother Of All Air Filters is not a title I hand out lightly. Compared to my other purifiers, this isn’t just the new favorite – this is the one making all my other machines feel insecure and unlovable.
If you’ve ever seen the “Distracted Boyfriend” meme, well… I’m the boyfriend. The PM20 is that girl walking by. The jealous girlfriend in the background? My poor, suddenly inadequate old purifiers. You understand. So before we talk about fancy features, heaters, or robotic personality, let’s talk about what matters most:
The Air Filtration System (AKA: OCD in Appliance Form)
When you’re talking about what you breathe 24/7, “meh, good enough” is not an acceptable philosophy. This thing is borderline obsessive about cleaning air – and honestly, thank goodness.
Dreame lists the PM20’s CADR (Clean Air Delivery Rate) as 400 m³/hr – which translates to around 235 cubic feet per minute, or enough to purify a space of just over 1,000 sq ft.
Translation: Big room? Covered. Open concept living space? Still covered. Odor from three-week guest? Please, it laughs at that.
The 4-Stage Filtration Stack:
- Magnetic Pre-Filter – Catches the chunky stuff: pet hair, dust bunnies, and whatever escaped your Roomba.
- High-Efficiency Composite Filter – Traps the tiny stuff (allergens, particles, even viruses down to 0.3 microns – maybe 0.1 according to Amazon’s listing).
- Activated Carbon Layer – Absorbs toxic VOCs from mattresses, paint, cleaning supplies… and maybe your visitor’s suitcase.
- Formaldehyde-Catalyst Filter – The star. Instead of trapping formaldehyde, it breaks it apart into harmless molecules. That’s science-speak for: you don’t just catch the poison, you disarm it.
Bottom line? If clean air were a competition, the PM20 is king is the undefeated champ. But – and this is the fun part – Dreame didn’t stop at “air purifier.” It added superpowers.
The “It Watches You” Feature (In a Good Way)
So imagine your smelly guest is still occupying your couch, and suddenly the PM20 swivels and starts blasting purified air directly at him. Not randomly – on purpose.
Thanks to a built-in radar sensor and “Follow Mode,” the PM20 can detect motion up to 16 feet away and aim clean air at the person moving through the room.
Subtle? No. Effective? 100%.
If you’re someone with allergies, asthma, chemical sensitivities, or – you know – guests who smell like brined sorrow, the PM20 literally follows you around with clean air.
Move left? It follows.
Move right? Still follows.
Stand near your guest? It goes into oscillation mode… so both of you get airflow, though one of you gets the message. Honestly, this might be my favorite feature of the entire machine. Oh – and it also blows air in two directions at once to circulate faster. Because one breeze wasn’t enough.
The Heat Is On
Here’s where the PM20 separates itself from its sibling (the PM10): built-in heater. This isn’t a gentle warm-air diffuser. This is a “turn on and feel it in three seconds” heater thanks to a PTC ceramic heating system that ramps up to 104°F / 40°C fast.
You could – if you were the type of person who enjoys passive-aggressive warfare – use this to blast heat at your odor-producing guest while pretending it’s “just the air purifier doing its thing.”
But yeah… sweating does amplify the smell, so use wisely.
Shockingly Quiet
Unlike your overstaying visitor, PM20 is almost suspiciously silent. ~30 dB on low—quiet enough that I’ve leaned in to check if it was even powered on. Even on full blast, it’s still in the “background noise” range, not the “jet engine on the dresser” zone.
The Weirdest Design Choice: That Tiny Display
The PM20 has a giant head-like dome that looks like it should have a glorious screen on the front. Spoiler: the display is about the size of a Cheez-It. You’ll need to be up close to read it unless your eyesight is superhero-grade.
Luckily, everything the display should’ve shown is available in the app.
The App (Mostly Awesome)
Remote? Yes.
Full app control? Yes.
App connection working perfectly? …in theory.
You can:
- adjust heat & fan modes
- view live air quality, humidity, and temp
- schedule auto-run
- turn on “follow mode”
- almost convince it to evict bad guests (but not quite)
My only fail: the app didn’t fully connect to the cloud for me, and the support link inside the app didn’t work. So I guess I’ll be using it as a mostly-hands-off device – but honestly, it doesn’t need babysitting.
Now that the guest is gone, life has returned to normal, and the house no longer smells like a fish market dumpster in July, here’s the verdict:
The Good:
✅ Best filtration system I’ve used
✅ Actually neutralizes toxins instead of trapping them
✅ “Follow Mode” is genius
✅ Can heat or cool a room
✅ Whisper-quiet
The Weak Spots:
⚠️ Display is comically tiny
⚠️ App connectivity was hit-or-miss for me
Final Thoughts – Should You Buy One?
If you want an air purifier that doesn’t just mask smells but destroys them – and can run circles around your old air filters while doing it – this is the one. If you live somewhere cold, get the PM20 over the PM10 for the heater alone. You can grab it on Dreame’s website or via their Amazon store – while it’s on sale if you’re lucky. In short: I’m impressed. You will be too. And your next houseguest might actually leave before week three.
