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Blake, Wm. The Book of Thel, object 16. 1796.

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Affluent homeowners are moving beyond pools and movie theaters to prioritize something much more essential: clean air.

Many luxury homes now include complex systems and flexible designs that promise healthier indoor air, arriving at a time when pollution and disease have made owners more concerned about what they’re breathing in.

In San Francisco, for instance, a $32 million home includes an elaborate air-filtration system meant to deal with the region’s varying air quality. The tightly sealed floor-to-ceiling windows and sliding doors offer hilltop views of the bay and access to the backyard without sacrificing air quality.

Developer Gregory Malin, who specializes in wellness-focused real estate, said he focuses on the tiniest details that can affect air quality, with new tools allowing for more-precise measurement of various particulate matter and carbon dioxide levels.

“COVID changed people’s perspective on connecting air quality to health, and the [wildfires] only enhanced that,” Malin said.