--- title: A Smarter DIY Air Filter | daily.dev description: AirSense is a DIY ESP32-powered air purifier that monitors PM2.5 dust concentration, AQI, temperature, humidity, and atmospheric pressure via sensors mounted... canonical: https://daily.dev/posts/a-smarter-diy-air-filter-alxbfvg10 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A Smarter DIY Air Filter | daily.dev og:description: AirSense is a DIY ESP32-powered air purifier that monitors PM2.5 dust concentration, AQI, temperature, humidity, and atmospheric pressure via sensors mounted... og:url: https://daily.dev/posts/a-smarter-diy-air-filter-alxbfvg10 og:image: https://api.daily.dev/og/posts/AlxbFvg10.png og:image:alt: A Smarter DIY Air Filter og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A Smarter DIY Air Filter **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary AirSense is a DIY ESP32-powered air purifier that monitors PM2.5 dust concentration, AQI, temperature, humidity, and atmospheric pressure via sensors mounted along the exhaust path. It uses a 150mm fan, a Xiaomi HEPA filter inside a perforated metal trash can, and a 3D-printed cap housing the ESP32 and LCD display. The build runs continuously but could potentially be enhanced with automatic activation based on air quality thresholds. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [You, too, can make this ESP32 air quality detector that works with Home Assistant](https://daily.dev/posts/you-too-can-make-this-esp32-air-quality-detector-that-works-with-home-assistant-s2y4gsbwo) · XDA Developers · 1 upvotes · 0 comments - [BIGTREETECH Panda Sense Pro 8-in-1 smart air quality monitor works with Home Assistant and Klipper for 3D printers](https://daily.dev/posts/bigtreetech-panda-sense-pro-8-in-1-smart-air-quality-monitor-works-with-home-assistant-and-klipper-f-gqi8pvex5) · CNX Software · 0 upvotes · 0 comments - [Scanning For Lifesigns With ESP32 And Raspberry Pi](https://daily.dev/posts/scanning-for-lifesigns-with-esp32-and-raspberry-pi-nfkwqkwyv) · Hackaday · 0 upvotes · 0 comments - [DIY ESP32-P4 weather station & air quality monitor connects to LoRa and ESP-NOW sensors, various weather APIs](https://daily.dev/posts/diy-esp32-p4-weather-station-air-quality-monitor-connects-to-lora-and-esp-now-sensors-various-wea-fyniccq3k) · CNX Software · 0 upvotes · 0 comments - [My first ESP32 sensor solved a real problem, and now I'm building new projects every week](https://daily.dev/posts/my-first-esp32-sensor-solved-a-real-problem-and-now-i-m-building-new-projects-every-week-xg2qcsehh) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#iot](https://daily.dev/tags/iot) [View this post on daily.dev](https://daily.dev/posts/a-smarter-diy-air-filter-alxbfvg10) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"A Smarter DIY Air Filter","url":"https://daily.dev/posts/a-smarter-diy-air-filter-alxbfvg10","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-smarter-diy-air-filter-alxbfvg10"},"datePublished":"2026-07-22T05:32:39.466Z","dateModified":"2026-09-14T09:29:10.445Z","description":"AirSense is a DIY ESP32-powered air purifier that monitors PM2.5 dust concentration, AQI, temperature, humidity, and atmospheric pressure via sensors mounted...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/341aab1e83aef3c285c2fc1479dc2e65?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/341aab1e83aef3c285c2fc1479dc2e65?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Hackaday","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hackaday","logo":"https://media.daily.dev/image/upload/s--JhDfhy70--/f_auto,q_auto/v1767541814/logos/hackaday","url":"https://daily.dev/sources/hackaday"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/a-smarter-diy-air-filter-alxbfvg10","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"iot","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hackaday","item":"https://daily.dev/sources/hackaday"},{"@type":"ListItem","position":3,"name":"A Smarter DIY Air Filter"}]} ```