O2U Aircheck is the world´s most simple and affordable precision instrument to sense the grade of particle air pollution.

Operated with easy Bluetooth connection to smartphone app, it monitors the indoor and outdoor air quality. Most air purifiers can clean an average rooms within 30 mins, but run for hours, sometimes continuously as the cleaning effect is not visualized. O2U Aircheck can stop unnecessary energy consumption by letting its user know when air inside a room is clean. It helps to run air purifiers efficiently and effectively.

The O2U Aircheck prevents a unnecessary filter changes thus reducing cost and waste. The product pays itself off after 1- 2 years.

A particular benefit to users with health issues such as asthma and allergies, is that they can be aware of the pollution level of their surroundings and decide whether or not to outdoor activities are suitable (E.g. running in metropolitan areas).