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Make Sure You Have Good Air Circulation While Styling Your Hair, Experts Say

Keep it cute and help ensure cleaner air with these useful tips, including using an air purifier

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Woman styling her hair with a straightener
Styling hair with creams or sprays and tools hotter than 300° F can affect health over time.
Photo: Getty Images

A recent study found that using hot tools heated above 300° F on hair to which hair care products, such as creams, serums, and oils, have been applied can increase exposure to indoor air pollutants that have been linked to lung irritation and respiratory conditions. Researchers attribute this to the vaporization of hair care ingredients at high temperatures. However, the oxidation of hair care products—without the use of hot tools like flat irons, curling irons, and hair dryers—can also be toxic. 

Compounds found in hair dyes, for example, have been linked to cancer. They can also increase the risk of asthma-like symptoms and more. But this doesn’t mean we have to choose between desired hairstyles and cleaner air. According to researchers, properly ventilating your space can make a huge difference.

More on Hair Care

According to a 2025 Mintel survey, nearly 6 in 10 Black women wear natural hairstyles that involve direct heat, and 41 percent regularly use a flat iron or straightener. Many commonly use hot combs, which can reach up to 500° F.

High heat is especially important for some Black hair textures, which often require more intense heat to straighten or style effectively. But this doesn’t mean Black women have to choose between desired hairstyles and cleaner air.

While hotter tools have the potential to generate more nanoparticles than lower-temperature tools, according to researchers, properly ventilating your space can make a huge difference.

Three Ways to Ventilate Your Space

CR’s air purifier testing lead Misha Kollontai suggests opening the door while styling your hair. “Chances are, the air outside of your bathroom door is cleaner than what is around the hair dryer/hair spray, so introducing that source of air into the equation will reduce the impact of the new particles being introduced,” Kollontai says.

“Another good bet is to turn on the circulation fan in your bathroom if you have one. People usually associate that fan with taking showers/baths as it is used to reduce the moisture content, but at the end of the day, it’s a fan that moves air out of your bathroom, so it would help with this as well.”

For a more efficient and reliable way to improve air quality, Nicole Backus, product and brand manager for home environment at Hamilton Beach and Clorox Home Appliance, recommends using an air purifier with a HEPA filter and an auto-sensing feature.

The most effective air purifiers in CR’s ratings utilize a fan that forces air through a mechanical (often HEPA) filter. “Some have supplementary technologies that build on this feature and claim benefits such as odor elimination (carbon filters) or antibacterial properties (UV light), but in general, the fan and filter base is really at the core of how effective a model is at reducing particle concentrations,” Kollontai says.

Whatever ventilation method you choose, Elissia Franklin, PhD, a scientist at Silent Spring Institute, says be sure to keep airing out your space even after you finish styling to get as many airborne toxins out as possible. “Using the over-the-stove fan or hood could help pull some of those chemicals out of your home as well, like when you are cooking.” 


Jennifer Ford.

Jennifer Ford

Jennifer Ford is a seasoned beauty editor and an expert on consumer shopping. Her work has appeared in print and online at publications such as Essence, Forbes, People, BET, and more.