Indoor Air Quality
Most indoor air quality content tells you what products claim to do. This section looks at what they actually do, based on the chemistry and the evidence.
I look at air purifiers, VOC sources and removal, indoor plants and air quality claims, mould biology, and natural ventilation. If a product claims to clean your air, I want to know exactly what it removes, by what mechanism, and what the evidence actually shows.
The indoor air quality product market is large, and the claims vary enormously. Some air purifiers genuinely remove specific pollutants through well understood mechanisms. Others rely on technologies with thin or contradictory evidence. The same is true for natural ventilation solutions, bamboo charcoal bags, and indoor plants marketed as air cleaners. This section works through each category methodically: what the chemistry shows, what the evidence shows, and where the two align and where they don’t.
Explore by topic
Air Purifiers, Science and Reviews
Which filtration methods actually remove PM2.5 and other pollutants, which specs on the box matter, and where marketing outruns the evidence.
VOCs and Indoor Air
Where volatile organic compounds actually come from in a home, what they do at real exposure levels, and what genuinely reduces them.
Indoor Plants and Air Quality
What the NASA plant study actually showed, and whether houseplants make a measurable difference to the air in a real room.
Mould and Indoor Microbiome
How mould actually grows and spreads indoors, why moisture control matters more than any spray, and what the microbiome in your home really means for your health.
Natural Ventilation Solutions
What actually improves airflow in a home, and where popular fixes like charcoal bags fall short of what a good ventilation strategy achieves.
