NO₂ makes asthma worse. About 1 in 12 athletes has it.
NO₂ comes from gas stoves and heaters at home, and from traffic outside the window. Asthma is the most common chronic condition in elite sport. Sleeping in a room with NO₂ makes it worse: tighter airways, harder breathing in training, more flare-ups. TOP shows you which rooms have it.
Thirty minutes, your schedule. No sales script.
- Fewer flare-ups
- Easier breathing
- Fewer missed sessions
WHO 2021 guideline
Under 25 µg/m³
NO₂, 24-hour
TOP tracks NOx in every room they sleep in, home and away, around the clock, and flags anything outside this band before lights-out.
What NOx does to a sleeping athlete.
Nitrogen oxides are gases made by burning fuel. Indoors that mostly means nitrogen dioxide from gas stoves, ovens and heaters, plus traffic exhaust coming in from busy roads. The main effect is on the airways. Breathing it irritates and inflames them, makes asthma worse, cuts lung function, and raises the chance of a chest infection.
An athlete with asthma who sleeps in a room with NO₂ gets more inflamed airways and worse symptoms when they train. And training raises the dose: a hard session moves many times more air through the lungs than rest, so the same bad room hits an athlete harder than anyone else. The result is harder breathing, more flare-ups, and missed sessions.
The research
Not our opinion. The literature.
+32%
Children in gas-cooking homes had 32% higher odds of asthma, and indoor NO₂ tracked with wheeze, across a 41-study meta-analysis.
Lin 2013, Int J Epidemiology
0.30 ppm
People with asthma who exercised after breathing NO₂ at this level had measurably worse airway tightening.
Bauer 1986, Am Rev Respir Dis
~1 in 12
Asthma and over-reactive airways are the most common chronic conditions in elite sport, and highest in endurance athletes.
ERS/EAACI Task Force 2008
Cleaner is always better, so only a ceiling is set. The rooms to watch: gas stove or gas heater in the home, or a window on a busy road.
You control training, load and nutrition. Control the room too.
Put a TOP device in your athletes’ bedrooms at home and in every hotel room on the road. It runs on its own cellular connection, needs no app or wifi, and streams NOx and five other room conditions to one dashboard, so you fix the room before anyone sleeps in it.
Plug in and go
Connect it to power and it’s working. No app, no pairing, no setup.
No wifi needed
It brings its own cellular connection, so hotel wifi never gets in the way.
Ready in minutes
One kit manager preps tens of rooms before the team even lands.
Better sleep, better recovery, fewer injuries.
Thirty minutes, your schedule. We’ll show you the dashboard live and scope a pilot for the rooms your team sleeps in next.
Everything TOP reads