How to Make the Air in Your Home More Breathable

https://www.wired.com/story/when-to-use-air-purifier-dehumidiers-humidifiers/


Our homes are our sanctuaries—a fact that became clear to a lot of people this past year when they suddenly had to spend all their time there. But your indoor air might be dirtier than you think, and that could be making it uncomfortable at home, and potentially even make you sick.

There are a few things you can do to help and devices you can buy, like an air purifier, a dehumidifier, and a humidifier. But they aren’t cheap, so you don’t need to spend the money on anything if you aren’t already struggling with your indoor air quality. These are potential tools, not necessities. While their names are self-explanatory, it’s not as easy to figure out when each one is actually needed in your home. We talked to experts, read research reports, and tested some products. Below is what we found, and what we advise.

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What’s the Problem With Indoor Air?

The air, unfortunately, is filthy. Generally it’s full of dust; pet dander; outdoor pollutants, which could include wildfire smoke depending on where you live; formaldehyde, which can come from wood furniture; and particulate matter. Your indoor air can also include a number of volatile organic compounds. However, VOCs overall aren’t a health issue, only specific ones, and those will vary from house to house.

The World Health Organization estimates that nine out of 10 people are exposed to air pollution that increases their risk for several diseases, including stroke, heart disease, and cancer.

Poor indoor air quality causes serious health issues. Things can be improved with determination to sniff out the cause of the problem—and some pricey hardware.

“There are many pollutants that can be found in someone’s home depending on many factors such as geographic location, or the age of the home and the building materials used,” says Joe Heaney, president of Lotus Biosecurity, a company in the indoor-air-quality-improvement business. “If you have a home with a wood-burning stove or fireplace, those are likely to introduce particulate matter into your indoor air, which can cause a range of respiratory symptoms and illnesses. Mold, dust, or pet hair can be a source of allergies, and pathogens (while not pollutants) introduced to the house by friends and neighbors may cause illness.”

On a basic level, when the air inside is stuffy, too dry, or too humid, it affects the way you feel, worsening cold and allergy symptoms, drying out your sinuses and skin, and even attributing to mold growth. But it can get much worse than that.

“Poor indoor air quality can affect even the healthiest lungs,” says Kenneth Mendez, president of the Asthma and Allergy Foundation of America. “Pollutants can irritate the eyes, nose, and throat, and cause headaches, dizziness, and fatigue. This can trigger allergy symptoms including chest tightness, coughing, wheezing, sneezing, shortness of breath, and even asthma attacks.”

See the testing section below on how to monitor the air in your home, but before testing your air or purchasing anything, try to first tackle some of the biggest causes of dirty air. “We like to focus on the technologies, but the process is much more important,” says Jeffrey Siegel, a researcher at the University of Toronto who studies indoor air quality, filtration, and air cleaning. These are the steps he recommends:

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August 1, 2021 at 06:03AM

Over 100 warship locations have been faked in one year

https://www.engadget.com/warship-fake-locations-221800228.html?src=rss

Abuses of location technology might just result in hot political disputes. According to Wired, SkyWatch and Global Fishing Watch have conducted studies showing that over 100 warship locations have been faked since August 2020, including the British aircraft carrier Queen Elizabeth and the US destroyer Roosevelt. In some cases, the false data showed the vessels entering disputed waters or nearing other countries’ naval bases — movements that could spark international incidents.

The research team found the fakes by comparing uses of the automatic identification system (AIS, a GPS-based system to help prevent collisions) with verifiable position data by using an identifying pattern. All of the false info came from shore-based AIS receivers while satellites showed the real positions, for instance. Global Fishing Watch had been investigating fake AIS positions for years, but this was the first time it had seen falsified data for real ships.

It’s not certain who’s faking locations and why. However, analysts said the data was characteristic of a common perpetrator that might be Russia. Almost all of the affected warships were from European countries or NATO members, and the data included bogus incursions around Kaliningrad, the Black Sea, Crimea and other Russian interests. In theory, Russia could portray Europe and NATO as aggressors by falsely claiming those rivals sent warships into Russian seas.

Russia has historically denied hacking claims. It has a years-long history of using fake accounts and misinformation to stoke political tensions that further its own ends, though. And if Russia is connected, the faked warship locations might be a significant escalation of that strategy. Even though such an approach might not lead to shooting matches, it could get disconcertingly close.

via Engadget http://www.engadget.com

July 31, 2021 at 05:30PM