Does Closing the Room Door Starve Us of Oxygen?

Air purifiers work best in a closed room environment, but this makes some people worry that closing windows starves us of oxygen. Worried about how long you can survive in an airtight room? Well, recent tests in a real apartment — with as many as seven people in a small …

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India winter high unsafe PM2.5 pollution levels compared with summer

Here’s Why Winter Air Quality in India Is so Bad

Winter air quality in India is hazardous, with PM2.5 pollution levels reach more than 10 times the World Health Organization’s annual limit. Hazy skies and pollution alerts have become the norm during India’s winters. But just why is this? Analyzing India’s Summer & Winter Pollution Levels Data analyzed by Smart …

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Delhi People Outdoor Excercise

What Time of Day Is Air Pollution Lowest in India?

When Smart Air polled people about what time of day air pollution is lowest, the most popular answer was the early morning, before the morning rush hour. But how accurate are our intuitions? To get to the bottom of it, Smart Air analyzed thousands of hours of PM2.5 data from …

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What Are Good Air Quality and Safe PM2.5 Levels For Your Home?

After more than 16 years, the World Health Organization (WHO) updated its air quality guidelines, including its recommended limits for one of the world’s biggest killers, PM2.5 air pollution. The WHO lowered their annual PM2.5 limit by half, from 10 micrograms to 5 micrograms. So are these new guidelines safe …

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common indoor air pollutants

Three Common Types of Pollutants that Affect Indoor Air Quality

Invisible air pollutants harm indoor air quality, jeopardizing our health silently. This time, we focus on the three most common types of gaseous air pollutants: VOCs (Volatile Organic Compounds), Formaldehyde, NO₂ (Nitrogen Dioxide), and radon. Time to monitor your indoor air pollution! VOCs (Volatile Organic Compounds) Are you experiencing headaches …

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diesel truck smoke

Air Ionizers Worse Than Diesel Exhaust

A wild study found that air supposedly “purified” with ionizers was actually worse than raw diesel exhaust. Believe it or not, the researchers found participants to inhale diesel exhaust in a laboratory. Study: Ionized Air Worse Than Raw Diesel Fuel Researchers from the University of British Columbia had participants sit …

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What level of PM2.5 is safe?

What Level of PM2.5 Is Safe? New Research Reveals

The WHO’s guideline limit for PM2.5 is 5 micrograms. But research shows reducing PM2.5 levels under 5 micrograms has significant health benefits and reduces mortality. What is the safe limit of PM2.5? Is the WHO PM2.5 Guideline of 5 Micrograms Safe? The WHO PM2.5 guideline is not intended to represent …

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Air Pollution Lowers Test Scores

Better Air Quality Improves Student Test Scores

Looking to improve student test scores? Multiple studies show improving air quality and lowering indoor air pollution levels can have a significant impact on test scores and student cognitive ability. In the past, we discussed air pollution reduces productivity on the job. Studies show this also extends to students in …

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