garden
Meet 12 indoor picks and learn what they can—and can’t—do.
Home air can contain chemical-laced pollutants and feel heavy. Houseplants offer a visible, low-cost way to support cleaner-feeling rooms, alongside ventilation and regular cleaning.
The NASA Clean Air Study found plants reduced benzene, formaldehyde, and trichloroethylene in closed chambers. Real homes differ, so plants work best as one layer of air care.
Spider plants are associated with formaldehyde removal and suit bedrooms; snake plants can help filter benzene and formaldehyde, and tolerate low light and infrequent watering.
Pothos can go in kitchens, while peace lilies and ferns suit humid bathrooms. Snake plants and ZZ plants can work in bedrooms or low-light hallways, according to the article.
Placement matters more than crowding pots together. Put plants in rooms where fumes or pollutants are more likely, including kitchens and spaces with synthetic rugs or furniture.
Healthy plants perform better. Avoid overwatering, give plants the light they prefer, and wipe leaves with a damp cloth every two to three weeks so dust does not build up.
Crowding plants limits room coverage; overwatering can encourage mold, and poor light weakens plants. Do not rely on houseplants alone—ventilation and cleaning still matter.
One plant will not make a room as clean as outdoor air. Houseplants may improve local VOC levels and humidity, with the best results alongside airing out and HEPA vacuuming.
Place a snake plant and spider plant on opposite sides of one room. Open a window slightly for 10 minutes daily, vacuum weekly, and track odors, sleep, and visible dust.
Choose a plant and place it near a possible pollution source, such as a kitchen counter, entryway, or desk. Water it well, wipe its leaves, and observe the room over two weeks.
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