Dear Entrepreneurs,<p>I know the HN Crowd cohorts one of the smartest and most tech-savvy communities. And I want you and me to breathe only the best air. Since, probably most of us are in the home-office, we need to take care of our well-being here too. In the office you have nice air-conditioning, but at home? Most of us, especially in Europe (Germany specifically for me) don't have AC and I think it's first of all too expensive and also very wasteful with electricity.<p>That's why I'd love to ask you wonderful people what you're using and recommending, when it comes to Air-Filtration/Cleaning systems.<p>Let's be honest Air conditioning (AC) devices are horribly inefficient. They are chunky, loud and use decades old technology. A "simple" compressor to just "cool" air + optional HEPA filter is not suitable for most of us for multiple reasons. Also it uses so much energy that it's environmentally not acceptable for me to use up 1-6kW/h for just cooling the room temperature.<p>That's why I'm looking to buy an improvement over a regular Fan. Something that is smart and can be controlled with the smartphone too. But there are so many devices and in such wild price categories that I hope to find an answer with your help for all of us.<p>Summer is coming and most of us are expecting new heat-waves too, including lots of pollen, dirty air, dust and funghi/viruses/bacteria. I have no connnection with them, but something like https://www.leitz.com/de-de/design--serien/trusens-luftreiniger/ but with smart-home capabilities in an acceptable price-range that most of us can afford would be great!<p>What are your suggestions for a device that cleans the air in the home-office (15-80 sqm)? Some of us have very little, others generous rooms, but the recommendation should work well with room-sizes up to 80sqm and even better with smaller room sizes.<p>I think an UV-C lamp killing germs, a HEPA filter for dust and dirt, an ozone-free ionisator to clean the air should be essential. Sorry if this is too naive, I'm a novice in this field, that's why I'm asking for your help.<p>Best and Thank you so much for your help!!