See what you breathe
everywhere you go.
The air in your home, your office, your kid's bedroom. It's full of fine particles and CO₂ you can't see, smell, or taste. I'm building a portable tracker that changes that.
No spam, just a heads-up when it's ready.
Your air changes every hour.
Shouldn't you know?
Foggy by 2 pm?
CO₂ climbs past 1,000 ppm in a closed room faster than you'd think. That afternoon brain fog isn't just you. It's the air. Know when to open a window before your focus drops.
See how fast CO₂ builds up →Is the nursery actually safe?
City-level AQI doesn't tell you what's in your kid's bedroom right now. Room-by-room data means you stop guessing and start knowing, especially during smoke season.
Allergies, asthma, and zero real data.
Pollen apps give you a city average. Your inhaler gives you hindsight. Neither tells you whether this room, this route, this park is safe right now. Personal air data means you dodge triggers instead of reacting to them.
Cooking is the dirtiest thing you do indoors.
Pan-frying can spike PM2.5 past 200 µg/m³, that's "Very Unhealthy" on the AQI scale. Most people have no idea. See the spike, open the hood, and watch it drop.
Simulate a cooking spike →Waking up tired?
Bedroom air changes overnight. CO₂ rises, ventilation drops, particles from outside settle in. Tracking overnight air is the sleep-quality variable nobody measures.
Your commute has a pollution profile.
Metro, bike lane, car with windows cracked: each one exposes you differently. A pocket tracker logs your real exposure as you move, not a city average from a station 10 km away.
It's not just somewhere.
It's everywhere.
Spin the globe. Find your city. Annual PM2.5 for 4,000+ cities, and this is just the outdoors, averaged over a year.
But the map stops at your front door.
That globe is the outdoors, averaged. It knows nothing about your kitchen, your bedroom, the bus, or the café you're in right now. Indoor air is often worse than outside, and you spend about 90% of your life indoors. Your real exposure isn't a dot on a map. It's everywhere you go, all day.
What do those numbers actually mean? Try the AQI converter →One device.
Every room.
All day.
Partycle is a portable air quality tracker. It clips to your bag, measures PM2.5 and CO₂ around you, and follows you through your day. Bedroom, bus, office, street.
Frying and toasting send fine particles soaring long before the smoke alarm reacts. See the spike, open a window.
A stuffy room climbs past 1,000 ppm of CO₂. That's the afternoon brain fog. Now you know to crack the door.
Traffic, the metro, a busy street. Your real exposure, logged as you go, not guessed from a city average.
Know the air your family sleeps in, room by room, hour by hour.
Design in progress
No hype.
Just the real build.
I'm Sara, an engineer building this product from scratch. Every milestone, every mistake, goes on YouTube.
You can get the front fow seat to the show.
This doesn't exist yet.
But it will.
Partycle ships when it's ready. I'm targeting Q4 2026. Drop your email and I'll send you every milestone as it happens. One update per milestone, nothing else.
Want to go further? A refundable $10 deposit reserves one of the first 100 units, which is going to be a special edition.
Refundable any time before shipping · secure checkout by Stripe
FAQ
When will the product ship?
I'm targeting Q4 2026, but I won't rush it. Every milestone is documented on YouTube, so you can follow the build and judge the pace yourself.
What happens if the project doesn't work out?
If it doesn't ship, I refund your deposit automatically. The $10 is a reservation, not a gamble.
Why can't I just use an air quality app?
Apps and maps show the outdoors, averaged, usually yesterday's number from a station miles away. They know nothing about your kitchen, your bedroom, or the street you're standing on. Air quality changes block to block and room to room, and indoor air is often worse than outside, where you spend about 90% of your day. A monitor that's actually with you measures what you're breathing, not a city average.
Why should I care if I can't change the air?
You can, and the fixes are usually free. Once you can see the air, you know when to act: open a window when CO₂ climbs and the afternoon fog sets in, run the hood when frying spikes PM2.5, or improve the ventilation in a stuffy room. The hard part isn't fixing the air, it's knowing when it needs fixing.
How accurate is it compared to professional monitors?
Partycle uses the Bosch BMV080 (fanless laser PM2.5) and the Sensirion SCD43 (NDIR CO₂), real sensors, not toys.
Does the app require a subscription?
No. The app is free, forever, with or without the device.
Where does my data go?
Your data lives on your phone. I don't sell it, and the app works without an account.
How long does the battery last?
I'm aiming for 5+ days of normal use, but the final specs are still being finalized.