Hi there fellow PH community members, Thanks @bramk for hunting the Smart Cambridge Mask! My name is James Lester and I am the international e-commerce manager for Cambridge Mask Company. A message from our founder, Chris Dobbing, “After seeing children in China suffering the long term health effects of air pollution, it became clear how important helping to solve the challenge was. My long term dream is to play a part in ending man-made air pollution for good. Until then, we need the best possible pollution masks to ensure a happy and healthy tomorrow. That's why Cambridge Mask Co exists” 93% of us are exposed to dangerous levels of air pollution on a daily basis. For the last two years we have been working on disrupting the respirator (mask) industry. Now, with the help of Y Combinator’s Fellowship Programme, we have been able to file patent, develop final prototype and source production to bring this project to life. Today we bring you the world’s first pollution mask that can actively monitor the air quality around you and tell you when to change mask filter. It’s perfect for cyclists, urban residents or anyone worried about polluted air. With the addition of a Bluetooth low energy chip in the mask valve, we can now answer key questions we always get asked: How do I know when I should be wearing a mask? How long does the mask last for? Does wearing a mask affect my breathing? The circular valve of the mask can be removed, and replaced with the SmartValve which quickly and easily clicks into place. The Cambridge Mask app, we help you check ambient air quality using a mix of open source and government data, provided via AirVisual. Then, using your height, weight, age and gender, we can calculate lung capacity and cross reference this with breathing patterns using the sensors in the SmartValve. This data means we can give filter expiration level as well as advise when you should wear a mask. We would love to hear your thoughts on our product! Thanks to everyone for voting and supporting us on Product Hunt! Please visit our Kickstarter campaign for more details! Kind regards James