Open Window
Instant air intelligence for your home
Open Window launched on February 7, 2026 with 2 votes, #6,500 of 16,627 launches that month.
What it does
Is it safe to open your windows? Get an instant YES/NO verdict based on real-time AQI, humidity, and heat data. Protect your home.
Live weather, today
Type your city and get 32 clear answers in seconds. Open the windows? Hang the washing? Safe to run? We read the live air, weather and UV so you don't have to. We look at conditions for your exact location, not a regional average. Your street, your air, your home. Real-time AQI, temperature, humidity, wind, rain, UV and pressure, fetched fresh every search. Pollen risk is derived from these conditions, not live sensors. Yes, No, or Wait. Each card gives you one clear reason you can act on immediately. No numbers. No jargon. Share any card to WhatsApp, X, Facebook or Telegram in one tap. Perfect for daily check-ins with family. Most weather apps hand you a wall of numbers: 23 degrees, 68%…from openwindowtoday.com
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A subtly obvious e-paper room air monitorNov 2025 · nicolin-dora.ch · ▲65In the cold season we tend to keep the windows closed. The air gets "stale": humidity often rises above 60 %, which can harm our wellbeing and promote mould. At the same time the CO₂ level in the air increases, which impacts our ability to concentrate. So I built a room air monitor that stays unobtrusive as long as everything is in the green zone, but becomes deliberately noticeable once thresholds are exceeded. For my personal love of statistics I also visualise the measurements in a clear dashboard.
theO: Smart Indoor Environment Sensor2018 · indiegogo.com · ▲80Get intelligent insights into your air quality
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