How-to articles

Practical advice to help you solve specific air quality issues at home.

Data-led studies

Original research on air quality issues from our data science team.

Opinion pieces

Thoughts, analysis and discussion of topics that matter to our readers.

Opinions

How to find helpful content in a sea of made-for-Google BS
Gisele Navarro
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HouseFresh has virtually disappeared from Google Search results. Now what?
Gisele Navarro
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How Google is killing independent sites like ours
Gisele Navarro
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How to

How to clean your air without an air purifier
Michelle Honeyager
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How to humidify a room without a humidifier
Jeff Somers
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How to measure humidity in your house
Jeff Somers
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How to test for mold in your house
Jeff Somers
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How to reduce dust in your apartment
Amparo Lopez
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How to get rid of cat odors in the house
Amparo Lopez
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How to keep a crawl space dry
Jeff Somers
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How to get rid of that old house smell
Amparo Lopez
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How to remove pet urine smells from a carpet
Amparo Lopez
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How to lower the humidity in your house
Jeff Somers
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Guides

CADR calculator: What size air purifier do I need?
Danny Ashton
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What is PlasmaWave technology?
Danny Ashton
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Do HEPA filters really remove viruses?
Amparo Lopez
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Where should you place your air purifier?
Jeff Somers
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Air purifier vs ionizer: key differences 
Amparo Lopez
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A jargon-free guide to air purifiers
Teddy Booth
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Air purifier vs dehumidifier: key differences 
Paul Allen
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Air purifier vs humidifier: key differences
Teddy Booth
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enery meter

How much electricity does an air purifier use?
Teddy Booth
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Do air purifiers help with smells?
Amparo Lopez
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Data-led

Dry air capitals: The cities with the driest air in the world
Amparo Lopez
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The price of clean indoor air in every country
Danny Ashton
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The countries and states most concerned about indoor air quality
G. John Cole
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The U.S. wildfire index: How and where wildfires spread across America
G. John Cole
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A cigarette with smoke

How many cigarettes you’re indirectly smoking due to air pollution levels
G. John Cole
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The New York City ZIP codes with the most air quality and mold complaints
G. John Cole
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The U.S. real estate markets most vulnerable to climate change
G. John Cole
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These are the most humid cities in the world
Danny Ashton
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The cities with the most and fewest good air days
Danny Ashton
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The worst U.S. states for air quality
James Booth
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