In the 1980s, NASA spent millions of dollars on how to deal with unhealthy indoor environments.

They were interested in the big challenge of purifying air on space stations and long space flights.

Here’s what they came up with…

Houseplants.

The simplest plant to take care of:

Sansevieria laurentii, also known as “mother-in-law’s tongue” and “snake plant.”

The original NASA paper is here:

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930073077.pdf

The specs

Still more

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