B&D Aerosol Technologies
Rethink what
you inhale.
Take a breath with us — from the coast, through forests, fields and the city, deep into the lung.
Every breath
Every breath carries a world.
An adult breathes around 11,000 litres of air a day. That air is never empty: it carries tiny solid and liquid particles — aerosols. Each colour on this walk is a different kind.
Weather & air
The sky makes its own.
Breaking waves burst millions of bubbles that launch sea salt into the air. Wind lifts desert dust across continents. And every cloud droplet needs one of these particles to form on.
27.7 million tonnes of Saharan dust settle over the Amazon every year — and fertilise it.8
Forest
Nature fills the air.
Trees release pollen and fungal spores. Their scent compounds react in sunlight and form brand-new particles — the soft blue haze over wooded hills. Pollen is so large that the nose catches it, which is why it makes us sneeze.
Agriculture
Fields feed us — and the air.
Ammonia from fertiliser and livestock reacts with other gases to form fine particles that travel far beyond the farm. Crop spraying adds droplets that can drift on the wind.
In Europe, agriculture is the largest relative source of fine particles (PM2.5).11
City
Traffic, heating, industry.
Engines release ultrafine soot. Brakes, tyres and roads add wear particles — soon the larger share of traffic pollution, even for electric cars.13 Wood and coal stoves at home produce about half of the EU's fine particles.12
99% of people live where WHO air-quality guidelines aren't met.1
Coatings
Paint becomes mist.
Spray guns turn paint and varnish into a fine mist so it coats evenly. Whatever misses the surface stays in the air. That's why professionals work in booths with masks — some paints contain isocyanates that can cause asthma.
In the UK, vehicle spray painters are about 80 times more likely to develop occupational asthma.14
Everyday life
The aerosols we make ourselves.
Cigarette smoke is an aerosol of particles small enough to reach the deep lung. Deodorant, hairspray, cleaning sprays, cooking and candles add more — mostly indoors, where we spend most of our time.
Tobacco kills more than 7 million people a year — over a million of them non-smokers breathing second-hand smoke.3
Inside
Then you breathe in.
On the way to the deep lung, your airways branch again and again — a natural filter that sorts particles by size.
In the lung
Size decides where it lands.
- > 10 µmCaught early, in the nose and throat
- 5 – 10 µmSettles in the bronchi
- 1 – 5 µmReaches the small airways — the window for inhaled medicine
- ≤ 0.1 µmDiffuses all the way into the alveoli
Alveoli
About 480 million air sacs.
Together they offer 50–100 m² of surface, separated from the blood by a barrier less than a thousandth of a millimetre thick. It's the fastest gateway into the body — for oxygen, for pollutants and for medicine.
Why it matters
Your health is decided by the particle.
The smallest particles don't stay in the lung. They're linked to stroke, heart disease, lung cancer, COPD and respiratory infections.1 Outdoor and household air pollution together are associated with 6.7 million deaths a year.1
The same physics works for good: inhaled medicine reaches the bloodstream in minutes.6 Control the particle — and you control where it goes.
Precision in every particle.
We engineer aerosols particle by particle — so active substances reach exactly where they should.
Our core
Precision in every particle.
Whether an aerosol heals, harms or does nothing at all is decided at the scale of a single particle. Its size, its structure, its chemistry. That's the level we engineer.
Size
A few micrometres decide whether a particle stops in the throat or reaches the deep lung.
Structure
Every particle should be like the next. A narrow size distribution means a reliable dose.
Chemistry
Formulation decides stability, solubility and how a substance behaves in flight and in the body.
Why it matters
Aerosols are everywhere.
And they matter more than you think.
They shape our health, our medicine, our climate and the products we use every day.
The air we breathe
premature deaths a year are associated with ambient and household air pollution.1
Lung to bloodstream
to peak blood levels for an approved inhaled insulin (12–15 minutes).6
A hidden thermostat
of global warming is offset by sulphate aerosols alone, according to IPCC estimates.7
Desert feeds rainforest
of Saharan dust settle over the Amazon each year, delivering phosphorus the rainforest needs.8
Through the air
Since 2024, WHO describes how respiratory pathogens spread “through the air” via infectious respiratory particles.10
Technology
From molecule to breath.
As one system.
Most aerosol products are assembled from legacy parts. We design formulation, droplet generation and delivery together — because each step decides the next.
Formulation
Chemistry at the molecular level, for stability, solubility and a consistent dose.
Aerosolization
Controlled droplet generation — precise particle size, narrow distribution.
Delivery
Engineered around real breathing, so the right dose reaches the right place.
Applications
Wherever aerosols
meet biology.
One core technology, adaptable across industries that care about getting delivery right.
Health & Pharma
Inhalation as a precise, patient-friendly route for active substances.
Consumer products
Healthier, better-performing alternatives to how people inhale today.
Research partnerships
Working with labs and industry on new formulations and devices.
Company
Built by chemists.
Made in Bavaria.
B&D was founded in 2026 by two chemists from the Technical University of Munich. We question assumptions at the molecular level — long before we get to the market.
Anna Dobmeier
Co-Founder & Managing Director
Julius Boie
Co-Founder & Managing Director
“Great science shouldn't stay on the shelf. Scientists belong in the room where decisions are made.”
Invited as a young company to the Ludwig-Erhard-Gipfel 2026, Tegernsee
Let's talk.
Industry partner, investor, researcher or future colleague — if you care about how substances reach the body, we'd like to hear from you.
info@bd-at.com