So, who am I exactly?
Learn about me.

I give 100% adequate information about the air around you.

I monitor, analyze and give you recommendations on how to improve air quality based on your lifestyle routine and wellness preferences.

My sensors monitor the air and the data appears on my personal app and on my display. My app allows you to access data collected on me in every room of your home.

I’m durable. I can serve you at least 7 to 10 years.

I measure the following metrics and give recommendations.



Volatile Organic Compounds (VOC)

Barometric pressure

Sound level

Light level

Particulate matter


I use an extremely precise sensor that detects VOCs (Volatile Organic Compounds). VOCs are gases, among them carbon monoxide, that are emitted by various materials into your environment, often without you noticing anything. Long-term exposure to some VOCs can cause adverse health effects.

I give recommendations on how to improve and avoid dangerous situations as high concentration of chemicals, CO2, humidity etc. I may recommend adjusting your home ventilation or switching on the humidifier or simply tell you when to open the windows to let fresh air come in.

I am smart! I learn every day.

I give you tailored advice based on set preferences, the user’s in-app behaviour, and a detailed analysis of the environment.


My Score reflects a combination of user preference and proprietary algorithms based on commonly available standards from the EPA (United States Environmental Protection Agency). The score is reflected on a 0 to 100 color-coded scale. 0 being poor and 100 being excellent air quality.

My Score and recommendations reflect these factors. The result is personalized and effective guidance for each user.

I’m like a tiny spaceship.

Theo Inside Out


  • Diameter: 89 mm
  • Depth: 37 mm
  • Weight: 220g


  • Wi-Fi connection
  • A smartphone or a tablet with support for BLE 4.0, running iOS 8 or later, or Android 4.3 or later
  • Free theO account installed in your device


  • Wi-Fi connection: 802.11 b/g/n @ 2.4 GHz
  • Bluetooth BLE 4.0


  • Stores data before the next sync


  • Firmware/software updates on connected device


  • I am battery powered. One charge lasts me around 1 month
  • 12DC external Micro USB power adapter/charger

I am friendly and can cooperate.

I can also be connected with other devices like NEST, Samsung Smart things etc. For example I will measure and analyze air quality and if the ventilation needs to be regulated, I will send the information to Nest to arrange that. Nest will turn on the ventilation and air quality will be improved.