The "air-purifying plant" claim is one of the most repeated myths in houseplant care. It comes from a 1989 NASA study that found certain plants removed volatile organic compounds (VOCs) like formaldehyde and benzene from sealed chambers. The catch: the study was done in a sealed 10x10 chamber, not your living room. To get equivalent air cleaning in a typical apartment, you'd need 10–1,000 plants per square meter. That's not air purification — that's a jungle.
But plants still do something real: they add humidity, they make spaces feel better, and some are genuinely easier to care for than others. Here are the 8 I'd actually keep, with honest expectations about what they do and don't do.
The 1989 NASA Clean Air Study tested 15 plants in sealed chambers and found they removed some VOCs. The media ran with "plants clean your air!" and the myth has never died. Here's the reality:
Plants don't meaningfully purify air in a home. But they do add humidity (which helps with dry skin, congestion, and static), they make spaces feel calmer, and some are genuinely beautiful. If you want cleaner air, buy a HEPA air purifier. If you want plants, buy plants for the plants.
Sansevieria trifasciata (now technically Dracaena trifasciata) is the plant I recommend to everyone. It tolerates low light, missed waterings, dry air, and neglect. It grows slowly, stays upright, and comes in several varieties ('Laurentii' with yellow edges, 'Moonshine' with silver leaves). It's the plant you buy when you've killed everything else.
Care: bright indirect light (tolerates low light but grows slower), water every 2–3 weeks (let soil dry completely), average humidity. It'll tell you when it's thirsty — the leaves wrinkle slightly. Overwatering kills it; underwatering barely bothers it. Full care guide is in my snake plant care guide.
Why it's great: indestructible, upright growth habit fits anywhere, looks good in any pot, and it's one of the few plants that actually tolerates a north-facing window.
Epipremnum aureum is the plant I recommend when someone says "I want a trailing plant but I kill everything." It tolerates low light, missed waterings, and it grows fast. It comes in several varieties: 'Golden' (yellow variegation), 'Marble Queen' (white and green), 'Neon' (bright chartreuse). All are equally easy.
Care: bright indirect light (tolerates low light but grows slower and loses variegation), water when the top 2 inches of soil are dry, average humidity. It'll tell you when it's thirsty — the leaves curl slightly. Prune it if it gets too long, or let it trail. You can propagate cuttings in water (see my propagation guide).
Why it's great: trails beautifully, grows fast, easy to propagate, and it's one of the few plants that tolerates low light without looking sad.
Chlorophytum comosum is making a comeback because it's easy, it trails, and it produces "babies" (small plantlets on long stems) that you can propagate or just let hang. The 'Vittatum' variety (green with a white stripe) is the most common.
Care: bright indirect light (tolerates lower light), water when the top inch of soil is dry, average humidity. It's tolerant of most conditions, but it doesn't like fluoride in tap water (causes brown leaf tips) — use filtered water or let tap water sit overnight before using.
Why it's great: easy, produces babies, and it's pet-safe (non-toxic to cats and dogs). The only downside: it can look messy if you don't trim the brown tips or the old leaves.
Spathiphyllum is the plant that wilts dramatically when it's thirsty and bounces back within hours of watering. It's a great communicator for people who aren't sure when to water. It produces white flowers (spathes) periodically, and it tolerates low light.
Care: low to bright indirect light (flowers better in brighter light), water when the top inch of soil is dry (or when it wilts — it'll tell you), average to high humidity. It's toxic to pets (calcium oxalate crystals), so keep it away from cats and dogs.
Why it's great: dramatic wilting makes watering easy, produces flowers, and it's one of the few plants that tolerates low light and still flowers. The downside: it's toxic to pets, and it can get spider mites if the air is too dry.
Ficus elastica is the plant with the big, glossy leaves that looks like it belongs in a mid-century modern living room. It's easy, it grows fast, and it comes in several varieties ('Burgundy' with dark leaves, 'Tineke' with variegated leaves, 'Ruby' with pink variegation).
Care: bright indirect light (tolerates lower light but grows slower), water when the top 2 inches of soil are dry, average humidity. It's in the same family as fiddle leaf fig but much easier — it doesn't drop leaves if you look at it wrong. It's toxic to pets (sap contains latex), so keep it away from curious chewers.
Why it's great: big leaves make a statement, grows fast, and it's one of the few ficus that doesn't throw a fit if you move it. The downside: it can get leggy if the light is too low, and it's toxic to pets.
Dracaena marginata (dragon tree) is the plant with the thin, arching leaves on tall, woody stems. It's easy, it grows slowly, and it fits in corners where other plants would look crowded. It comes in several varieties ('Colorama' with red edges, 'Tricolor' with white and red stripes).
Care: bright indirect light (tolerates lower light but grows slower), water when the top 2 inches of soil are dry, average humidity. It's sensitive to fluoride in tap water (causes brown leaf tips) — use filtered water or let tap water sit overnight. It's toxic to pets (causes vomiting if ingested).
Why it's great: tall, narrow growth habit fits in corners, looks architectural, and it's one of the few plants that tolerates low light without looking leggy. The downside: it's toxic to pets, and it's sensitive to fluoride.
Aloe barbadensis miller is the plant with the succulent leaves full of gel that soothes burns. It's easy, it's useful, and it tolerates neglect. It needs bright light (a south or west window) and infrequent watering (every 2–3 weeks, let the soil dry completely).
Care: bright direct light (at least 4–6 hours), water every 2–3 weeks (soak and dry method), well-draining soil (cactus mix + extra perlite). It'll tell you when it's thirsty — the leaves curl inward. Overwatering kills it quickly — the leaves turn mushy and brown. It's toxic to pets (causes vomiting and diarrhea).
Why it's great: useful (the gel actually soothes minor burns), easy, and it's one of the few succulents that's actually practical. The downside: it needs bright light, it's toxic to pets, and it's not the most attractive plant.
Chamaedorea seifrizii is the palm with the thin, arching fronds that looks like a mini bamboo grove. It's easy, it tolerates low light, and it's one of the few palms that doesn't hate indoor air. It needs average to high humidity, so it's a good choice for bathrooms or kitchens.
Care: bright indirect light (tolerates lower light but grows slower), water when the top inch of soil is dry, average to high humidity. It's sensitive to fluoride and salt buildup (causes brown leaf tips) — use filtered water and flush the soil every few months. It's pet-safe (non-toxic to cats and dogs).
Why it's great: tolerates low light, adds humidity, and it's pet-safe. The downside: it can get spider mites if the air is too dry, and it's sensitive to water quality.
Plants don't meaningfully purify air in a home — that's a myth from a 1989 NASA study. But they do add humidity, they make spaces feel better, and some are genuinely easier to care for than others. Snake plant and pothos are the safest bets — they tolerate low light, missed waterings, and they don't drop leaves. If you want something that flowers, peace lily is the most forgiving. And if you're not sure how often to water them, my watering calculator builds a schedule based on your plant type, pot size, and light conditions.
I've kept plants in every room of my apartment for five years. This site is one person writing about plants — not a nursery, just what actually worked.