Public Lab Wiki documentation

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Open Air

This is an open source community effort to develop a range of low-cost air quality monitoring and remediation tools. Welcome!

Join in by:

  • Reading about goals and asking great questions
  • Trying (and critiquing) our community-made how-to guides
  • Posting your own how-to guides and mods
  • Building on others’ work; hack and remix the kits to refine and expand them
  • Submit your improvements for inclusion in an upcoming starter kit release or add-on
  • Serving on a Research Review Group for a 3 month period


State-by-state info sheets on indoor air quality assistance and governance (work in progress!)


Purpose Category Status Author Time Difficulty Replications
DIY Formaldehyde Test Kit build in-progress @nshapiro 3h medium 3 replications: Try it »
Build a plant-based air purifier build in-progress @nshapiro 3h easy 4 replications: Try it »
Leptos: gas detection and monitoring station - - @imvec - - 0 replications: Try it »
DIY: Wi-Fi Streaming Weatherproof PM2.5 Monitor (Dylos-based) monitor complete @kevinvivergy 5h medium 0 replications: Try it »

Add an activity  or request an activity

Activities should include a materials list, costs and a step-by-step guide to construction with photos. Learn what makes a good activity here.

Frequently Asked Questions about air quality

Title Author Updated Likes
What type of health issues are associated with inhalation of ultrafine particles? @liz 14 days ago
What do the terms attainment and nonattainment mean? @liz 15 days ago
How do you account for signal drift with sensors in the field? @gretchengehrke 15 days ago
Do you have resources on odor logs and odor reporting platforms? @gretchengehrke about 1 month ago
What are the health effects related to fine particles of calcium carbonate? @stevie 3 months ago
AERMOD: Is it a good model? How has it been tested and verified? @marlokeno 10 months ago
lightweight air quality sensors for a weather balloon @glenc 10 months ago
What kind/size of microdust does activated carbon give off & how much of a concern is it? @jfrankamp 10 months ago
In the plant based air purifier, could airflow go the other way, using an unmodified pump? @warren 10 months ago
How can i know if my plant-based air filter is working? @liz 11 months ago
Show 1 more
Is CALPUFF a good air quality modeling tool @marlokeno 11 months ago

Ask a question  or help answer future questions

Also see

Additional media

By @zengirl2:

air-quality air

list:plots-airquality activities:open-air upgrades:open-air