Articles

Finding my Way to Low-Cost Sensors at an Immense Research Gathering: The EGU2025

Wednesday, May 7, 2025

Finding my Way to Low-Cost Sensors at an Immense Research Gathering: The EGU2025

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Most Popular

Saturday, Feb 27, 2021
Classroom and indoor CO2 Standards compared; A Look around the World
Saturday, Mar 8, 2025
Enhanced Air Quality Monitoring in Lao PDR: Deployment of 160 AirGradient Monitors Marks Significant Advancement of Nationwide Air Quality Information
Thursday, Feb 20, 2025
Uniting Families for Clean Air: The Family-Led Observatory in Ecuador
Saturday, Feb 8, 2025
Decoding ‘Community Air Monitoring’: When Marketing Overshadows Openness.
Friday, Dec 27, 2024
AirGradient’s Next Step: Introducing the Clean Air Advocates Program

CEO Corner

Friday, Feb 28, 2025
AirGradient Open Data Survey Results: How our Community wants to Share their Air Quality Data.
Monday, Feb 10, 2025
Redefining Our Bold Approach: AirGradient Way Forward
Saturday, Feb 8, 2025
Decoding ‘Community Air Monitoring’: When Marketing Overshadows Openness.
Saturday, Jan 18, 2025
They Add More Pollutants; We Add More Accuracy. Why We’re Stepping Back from PM₁ and PM₁₀ Marketing
Friday, Dec 27, 2024
AirGradient’s Next Step: Introducing the Clean Air Advocates Program

Shorts

Saturday, May 10, 2025

Is air pollution just a human problem? Not even close.

Wednesday, Apr 23, 2025

Importance of Air Quality Monitoring Networks

Wednesday, Apr 16, 2025

Air Pollution = Climate Change? Here's the Real Connection!

Thursday, Apr 3, 2025

Meet AirGradient Open Air - The Climate Change Monitor!

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Celebrating World Asthma Day

Tuesday, May 6, 2025

Celebrating World Asthma Day

AirGradient-UNDP Air Quality Toolkit

Friday, Apr 25, 2025

AirGradient-UNDP Air Quality Toolkit

Community Air Quality Monitoring in Sumberejo, Indonesia

Tuesday, Apr 22, 2025

Community Air Quality Monitoring in Sumberejo, Indonesia

More Than Just Specifications - The Research and Testing Behind Our Sensor Selections

Tuesday, Apr 22, 2025

More Than Just Specifications - The Research and Testing Behind Our Sensor Selections

The Hidden Health Risks of CO₂: Rethinking Acceptable Exposure Limits

Monday, Apr 21, 2025

The Hidden Health Risks of CO₂: Rethinking Acceptable Exposure Limits

Air Quality Monitoring for Enhanced Revelry

Sunday, Apr 20, 2025

Air Quality Monitoring for Enhanced Revelry

AirGradient and the U.S. Tariff Changes

Thursday, Apr 10, 2025

AirGradient and the U.S. Tariff Changes

Collaboration in Action: What to Expect from Air Sensor International Conference (ASIC) 2025 Bangkok

Thursday, Mar 27, 2025

Collaboration in Action: What to Expect from Air Sensor International Conference (ASIC) 2025 Bangkok

Beyond the numbers: the fundamental dilemma of size

Wednesday, Mar 26, 2025

Beyond the numbers: the fundamental dilemma of size

Enabling Affordable, Accessible & Accurate Air Quality Monitoring

Wednesday, Mar 26, 2025

Enabling Affordable, Accessible & Accurate Air Quality Monitoring

Update: AirGradient and the PM<sub>2.5</sub> correction algorithm from the EPA

Thursday, Mar 13, 2025

Update: AirGradient and the PM_2.5 correction algorithm from the EPA

Nationwide School Air Quality Monitoring in Lao PDR with UNICEF

Monday, Mar 10, 2025

Nationwide School Air Quality Monitoring in Lao PDR with UNICEF

Airgradient ONE and Open Air - Indoor and Outdoor Open Source Air Quality Monitor

Monday, Mar 10, 2025

Airgradient ONE and Open Air - Indoor and Outdoor Open Source Air Quality Monitor

Are Fireproof Homes the Future of Climate Resilience?

Monday, Mar 10, 2025

Are Fireproof Homes the Future of Climate Resilience?

My Journey to Cleaner Air While Working from Home

Monday, Mar 10, 2025

My Journey to Cleaner Air While Working from Home

The U.S. pulled the plug on air quality monitoring. We’re here to reboot it.

Friday, Mar 7, 2025

The U.S. pulled the plug on air quality monitoring. We’re here to reboot it.

AirGradient Open Data Survey Results: How our Community wants to Share their Air Quality Data.

Friday, Feb 28, 2025

AirGradient Open Data Survey Results: How our Community wants to Share their Air Quality Data.

It's Time to Open the Air Quality Monitor Black Boxes.

Tuesday, Feb 25, 2025

It’s Time to Open the Air Quality Monitor Black Boxes.

Why Low-Cost Air Quality Monitors Struggle in West Africa — And How Afri-SET is Solving It

Monday, Feb 17, 2025

Why Low-Cost Air Quality Monitors Struggle in West Africa — And How Afri-SET is Solving It

Redefining Our Bold Approach: AirGradient Way Forward

Monday, Feb 10, 2025

Redefining Our Bold Approach: AirGradient Way Forward

UNICEF x AirGradient: Two-Day Workshop on Air Quality Monitoring

Saturday, Feb 8, 2025

UNICEF x AirGradient: Two-Day Workshop on Air Quality Monitoring

Should You Base Your Air Quality Monitor Purchasing Decision on AQ-SPEC Results?

Tuesday, Feb 4, 2025

Should You Base Your Air Quality Monitor Purchasing Decision on AQ-SPEC Results?

Turning Air Quality Data Into Actionable Insights

Wednesday, Jan 29, 2025

Turning Air Quality Data Into Actionable Insights

Beyond the numbers: PM<sub>2.5</sub> is not PM<sub>2.5</sub>

Tuesday, Jan 28, 2025

Beyond the numbers: PM_2.5 is not PM_2.5

Beyond the numbers: the uncomfortable complexity of PM<sub>2.5</sub>

Tuesday, Jan 28, 2025

Beyond the numbers: the uncomfortable complexity of PM_2.5

Illuminating Air Quality

Monday, Jan 27, 2025

Illuminating Air Quality

How a Youth Organization in Honduras is Shaping a New Generation of Changemakers

Tuesday, Jan 21, 2025

How a Youth Organization in Honduras is Shaping a New Generation of Changemakers

Our Donation to Those Impacted by the L.A. Wildfires

Tuesday, Jan 21, 2025

Our Donation to Those Impacted by the L.A. Wildfires

The Weight of the One Percent Unhappy Customers

Monday, Jan 20, 2025

The Weight of the One Percent Unhappy Customers

They Add More Pollutants; We Add More Accuracy. Why We're Stepping Back from PM<sub>1</sub> and PM<sub>10</sub> Marketing

Saturday, Jan 18, 2025

They Add More Pollutants; We Add More Accuracy. Why We’re Stepping Back from PM₁ and PM₁₀ Marketing

Update on PMS5003 Calibrations

Wednesday, Jan 15, 2025

Update on PMS5003 Calibrations

We Don't Love Subscriptions. But the AirGradient Dashboard Needs Them

Wednesday, Jan 15, 2025

We Don’t Love Subscriptions. But the AirGradient Dashboard Needs Them

Can You Trust Google Maps' New Air Quality Feature?

Friday, Jan 10, 2025

Can You Trust Google Maps’ New Air Quality Feature?

AirGradient's Young Leaders

Sunday, Dec 22, 2024

AirGradient’s Young Leaders

Why We’re Doing Black Friday Differently This Year

Friday, Nov 29, 2024

Why We’re Doing Black Friday Differently This Year

Air Quality Monitors Compared: AirGradient ONE vs Apollo AIR-1

Thursday, Nov 14, 2024

Air Quality Monitors Compared: AirGradient ONE vs Apollo AIR-1

Why We’ve Decided to Change Our CO<sub>2</sub> Sensor

Thursday, Nov 7, 2024

Why We’ve Decided to Change Our CO₂ Sensor

The Costs of Opacity: A Case for More Openness in the Indoor Air Quality Monitor Industry

Sunday, Oct 20, 2024

The Costs of Opacity: A Case for More Openness in the Indoor Air Quality Monitor Industry

Low Readings from Plantower PMS5003

Thursday, Oct 17, 2024

Low Readings from Plantower PMS5003

A Tough Decision at AirGradient

Wednesday, Oct 2, 2024

A Tough Decision at AirGradient

Every Air Quality Monitor Tells a Story

Wednesday, Oct 2, 2024

Every Air Quality Monitor Tells a Story

From DIY Air Purifiers to a Global Movement: The Story of Smart Air

Sunday, Sep 22, 2024

From DIY Air Purifiers to a Global Movement: The Story of Smart Air

Low Cost CO2 Sensors Comparison: Photo-Acoustic vs NDIR

Saturday, Sep 21, 2024

Low Cost CO2 Sensors Comparison: Photo-Acoustic vs NDIR

Does the EPA Correction Algorithm for Wildfire Smoke PM<sub>2.5</sub> Developed for PurpleAir Work for AirGradient Monitors?

Wednesday, Sep 18, 2024

Does the EPA Correction Algorithm for Wildfire Smoke PM_2.5 Developed for PurpleAir Work for AirGradient Monitors?

AirGradient’s Approach to Authentic Partnerships

Monday, Sep 16, 2024

AirGradient’s Approach to Authentic Partnerships

High School Students Running a PM Study in Milton, Ontario, Canada

Thursday, Sep 12, 2024

High School Students Running a PM Study in Milton, Ontario, Canada

AirGradient Offers Significant Discount for EPIC Air Quality Fund Applicants

Monday, Sep 2, 2024

AirGradient Offers Significant Discount for EPIC Air Quality Fund Applicants

Enhancing Air Quality Data Access in Africa: A Step Towards a Cleaner Future

Wednesday, Aug 14, 2024

Enhancing Air Quality Data Access in Africa: A Step Towards a Cleaner Future

The Health Impacts of Smoke Inhalation and the Importance of Precautionary Measures

Wednesday, Jul 3, 2024

The Health Impacts of Smoke Inhalation and the Importance of Precautionary Measures

SAMHE UK School Project

Monday, Jun 24, 2024

SAMHE UK School Project

Why I Do Not Sign NDAs

Friday, Jun 21, 2024

Why I Do Not Sign NDAs

Bamboo School Project

Thursday, Jun 20, 2024

Bamboo School Project

Air Quality Monitors Compared: AirGradient ONE vs Airthings

Saturday, May 25, 2024

Air Quality Monitors Compared: AirGradient ONE vs Airthings

Air Quality Monitors Compared: AirGradient vs PurpleAir

Tuesday, May 14, 2024

Air Quality Monitors Compared: AirGradient vs PurpleAir

Collaboration with ICIMOD

Friday, May 10, 2024

Collaboration with ICIMOD

How to Determine the Error of an Air Quality Sensor?

Friday, Apr 12, 2024

How to Determine the Error of an Air Quality Sensor?

Open Source Hardware is Not a New Concept

Wednesday, Mar 27, 2024

Open Source Hardware is Not a New Concept

Improving Air Quality in Pai, Thailand

Saturday, Feb 10, 2024

Improving Air Quality in Pai, Thailand

We Own All Rights to all Data Collected via Products Purchased by You.

Thursday, Feb 8, 2024

We Own All Rights to all Data Collected via Products Purchased by You.

Are You Just Air-Purifying Your Way Out Of This Mess?

Friday, Jan 26, 2024

Are You Just Air-Purifying Your Way Out Of This Mess?

We accidentally forgot about the largest environmental conference in the world!

Monday, Jan 22, 2024

We accidentally forgot about the largest environmental conference in the world!

Our Website Loads up to 4 Times Faster after Removal of (unneeded) Tracking Scripts

Sunday, Dec 31, 2023

Our Website Loads up to 4 Times Faster after Removal of (unneeded) Tracking Scripts

Why Do We Need So Much Tracking? We Actually Don't!

Sunday, Dec 31, 2023

Why Do We Need So Much Tracking? We Actually Don’t!

A Simple Linear Correction Algorithm for Temperature

Monday, Dec 18, 2023

A Simple Linear Correction Algorithm for Temperature

Air Quality Hackathon

Friday, Dec 8, 2023

Air Quality Hackathon

Navigating Air Pollution on Our Global Journey

Tuesday, Nov 28, 2023

Navigating Air Pollution on Our Global Journey

Using R and RStudio to Develop a Linear Regression Correction Algorithm

Saturday, Nov 25, 2023

Using R and RStudio to Develop a Linear Regression Correction Algorithm

Why do I sign and add a thank-you card for every air quality monitor we sell?

Sunday, Nov 12, 2023

Why do I sign and add a thank-you card for every air quality monitor we sell?

How we use Linear Regression to Drastically Improve Humidity Sensor Accuracy

Friday, Oct 13, 2023

How we use Linear Regression to Drastically Improve Humidity Sensor Accuracy

Are our Articles Disguised Ads?

Tuesday, Sep 26, 2023

Are our Articles Disguised Ads?

Air Quality Monitors from USD 169 to 6k use the Same Low-Cost PM Modules

Sunday, Sep 24, 2023

Air Quality Monitors from USD 169 to 6k use the Same Low-Cost PM Modules

Should we Pay for Clicks?

Sunday, Sep 17, 2023

Should we Pay for Clicks?

Low Cost CO2 Sensors Performance Outdoors Close to Reference Grade Instruments

Thursday, Aug 17, 2023

Low Cost CO2 Sensors Performance Outdoors Close to Reference Grade Instruments

What we Learned Making a Plastic Injection Mold with a Chinese Mold Maker

Saturday, Aug 12, 2023

What we Learned Making a Plastic Injection Mold with a Chinese Mold Maker

Our Open Source Open Hardware Vision

Tuesday, Aug 1, 2023

Our Open Source Open Hardware Vision

Health Impacts Of Air Pollution Across the Life Course

Wednesday, Apr 19, 2023

Health Impacts Of Air Pollution Across the Life Course

Air Quality Monitors: When Paying More Does Not Get You More Accuracy

Wednesday, Apr 12, 2023

Air Quality Monitors: When Paying More Does Not Get You More Accuracy

Licensing and Monetization of our Open Source Air Quality Monitors

Wednesday, Mar 8, 2023

Licensing and Monetization of our Open Source Air Quality Monitors

AirGradient TVOC Monitoring Survey Results

Monday, Jan 30, 2023

AirGradient TVOC Monitoring Survey Results

Co-Location project

Tuesday, Jan 10, 2023

Co-Location project

When Mimi is Better than Mini or When a Clone is Better than the Original?

Friday, Dec 16, 2022

When Mimi is Better than Mini or When a Clone is Better than the Original?

Launching the Open Air Outdoor Monitor

Thursday, Dec 15, 2022

Launching the Open Air Outdoor Monitor

Good Hardware Takes Time- The Journey of the AirGradient DIY Kit Production

Wednesday, Jul 13, 2022

Good Hardware Takes Time- The Journey of the AirGradient DIY Kit Production

Air Purifier vs. Positive Pressure Fresh Air System – an unfair Battle?

Saturday, Jan 22, 2022

Air Purifier vs. Positive Pressure Fresh Air System – an unfair Battle?

Ikea Vindriktning Air Quality Sensor Review and Accuracy

Saturday, Feb 27, 2021

Ikea Vindriktning Air Quality Sensor Review and Accuracy

Breathe Safe Air Blog

Tuesday, Jan 19, 2021

Breathe Safe Air Blog

How to write a School Policy on Air Quality

Friday, Nov 20, 2020

How to write a School Policy on Air Quality

The making of our DIY enclosure

Wednesday, Oct 28, 2020

The making of our DIY enclosure

Use the Real-time Outdoor Activity Risk (ROAR) Guideline to complement your school’s AQI policy

Tuesday, Aug 11, 2020

Use the Real-time Outdoor Activity Risk (ROAR) Guideline to complement your school’s AQI policy

Review: Nicholas and his incredible Eyesight

Saturday, Aug 1, 2020

Review: Nicholas and his incredible Eyesight

Why Air Quality is such a Successful Marketing Opportunity – a look at Maslow’s Hierarchy of Needs

Tuesday, Jun 30, 2020

Why Air Quality is such a Successful Marketing Opportunity – a look at Maslow’s Hierarchy of Needs

Design your School’s Air Quality Management to be a Growth and Profit Maker

Tuesday, Jun 23, 2020

Design your School’s Air Quality Management to be a Growth and Profit Maker

Air Quality at Schools – A Holistic Approach

Thursday, Feb 20, 2020

Air Quality at Schools – A Holistic Approach

8 Student Experiments to Measure Air Quality

Sunday, Feb 16, 2020

8 Student Experiments to Measure Air Quality

6 Ways to Improve Air Quality in Classrooms

Friday, Feb 7, 2020

6 Ways to Improve Air Quality in Classrooms

We Measured the CO2 Level in a Classroom. This is What We Found Out.

Friday, Feb 7, 2020

We Measured the CO2 Level in a Classroom. This is What We Found Out.

Living in an Area with High Air Pollution? Consider Positive Pressure Systems.

Wednesday, Jan 8, 2020

Living in an Area with High Air Pollution? Consider Positive Pressure Systems.

Air Quality – Selected Resources

Saturday, Dec 28, 2019

Air Quality – Selected Resources

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