Not Sure About Your Tap Water? Here's How to Test for Contaminants

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In the wake of Flint, Michigan's water crisis, you may have begun to wonder: Is my tap water safe? How would I know? To put your mind at ease—or just to satisfy your scientific curiosity—you can find out exactly what's in your municipal water pretty easily, as Popular Science reports. Depending on where you live, it might even be free.

A new water quality test called Tap Score, launched on Kickstarter in June 2017, helps you test for the most common household water contaminants for $120 per kit. You just need to take a few samples, mail them to the lab, and you'll get the results back in 10 days, telling you about lead levels, copper and cadmium content, arsenic, and other common hazardous materials that can make their way into water via pipes or wells. If you're mostly worried about lead, you can get a $40 test that only tells you about the lead and copper content of your water.

In New York State, a free lead-testing program will send you a test kit on request that allows you to send off samples of your water to a state-certified lab for processing, no purchase required. A few weeks later, you'll get a letter with the results, telling you what kind of lead levels were found in your water. This option is great if you live in New York, but if your state doesn't offer free testing (or only offers it to specific locations, like schools), there are other budget-friendly ways to test, too.

While mailing samples of your water off to a certified lab is the most accurate way to test your water, you can do it entirely at home with inexpensive strip tests that will only set you back $10 to $15. These tests aren't as sensitive as lab versions, and they don't test for as many contaminants, but they can tell you roughly whether you should be concerned about high levels of toxic metals like lead. The strip tests will only give you positive or negative readings, though, whereas the EPA and other official agencies test for the concentration of contaminants (the parts-per-billion) to determine the safety of a water source. If you're truly concerned with what's in your water, you should probably stick to sending your samples off to a professional, since you'll get a more detailed report of the results from a lab than from a colored strip.

In the future, there will likely be an even quicker way to test for lead and other metals—one that hooks up to your smartphone. Gitanjali Rao, an 11-year-old from Colorado, won the 2017 Young Scientist Challenge by inventing Tethys, a faster lead-testing device than what's currently on the market. With Tethys, instead of waiting for a lab, you can get results instantly. It's not commercially available yet, though, so for now, we'll have to stick with mail-away options.

[h/t Popular Science]

Warby Parker Created a Spray to Prevent Your Glasses From Fogging Up When You Wear a Face Mask

They're smiling under the masks (because their glasses aren't foggy).
They're smiling under the masks (because their glasses aren't foggy).
Julian Wan, Unsplash

A face mask won’t keep you from getting enough oxygen, but it might keep you from seeing clearly through your glasses. When you exhale, your warm breath usually dissipates into the air in front of you. When you’re wearing a face mask, on the other hand, it gets funneled through the gaps around your nose and turns into tiny water droplets after colliding with your much colder lenses. In other words, it fogs up your glasses.

To prevent this from happening, Warby Parker has created an anti-fog spray that absorbs those droplets as soon as they form on your lenses, before they can cloud your view. It’s not the only product like it on the market—Amazon alone has dozens—but Warby Parker’s version has the added benefit of cleaning your lenses, too.

The perfect solution.Warby Parker

As Prevention.com reports, the spray is part of the company’s “Clean My Lenses Kit,” which comes with a bottle of anti-fog spray, a microfiber cloth, and a pouch for your glasses (or for storing the other two products in the kit). All you do is spritz both sides of your lenses, wipe them down with the cloth, and venture out for your fog-free day.

The spray works with any type of lens, which makes it a useful innovation even for people who just wear regular sunglasses. It can also come in handy during plenty of other fog-inducing situations, like sipping a hot beverage or cooking over a hot stove.

You can order a kit online for $15, or look for one in your local Warby Parker store. In the meantime, here are a few DIY ways to keep your glasses from getting foggy.

[h/t Prevention.com]

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

Warby Parker Created a Spray to Prevent Your Glasses From Fogging Up When You Wear a Face Mask

They're smiling under the masks (because their glasses aren't foggy).
They're smiling under the masks (because their glasses aren't foggy).
Julian Wan, Unsplash

A face mask won’t keep you from getting enough oxygen, but it might keep you from seeing clearly through your glasses. When you exhale, your warm breath usually dissipates into the air in front of you. When you’re wearing a face mask, on the other hand, it gets funneled through the gaps around your nose and turns into tiny water droplets after colliding with your much colder lenses. In other words, it fogs up your glasses.

To prevent this from happening, Warby Parker has created an anti-fog spray that absorbs those droplets as soon as they form on your lenses, before they can cloud your view. It’s not the only product like it on the market—Amazon alone has dozens—but Warby Parker’s version has the added benefit of cleaning your lenses, too.

The perfect solution.Warby Parker

As Prevention.com reports, the spray is part of the company’s “Clean My Lenses Kit,” which comes with a bottle of anti-fog spray, a microfiber cloth, and a pouch for your glasses (or for storing the other two products in the kit). All you do is spritz both sides of your lenses, wipe them down with the cloth, and venture out for your fog-free day.

The spray works with any type of lens, which makes it a useful innovation even for people who just wear regular sunglasses. It can also come in handy during plenty of other fog-inducing situations, like sipping a hot beverage or cooking over a hot stove.

You can order a kit online for $15, or look for one in your local Warby Parker store. In the meantime, here are a few DIY ways to keep your glasses from getting foggy.

[h/t Prevention.com]

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.