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Most people assume you need a noisy, expensive air purifier to clean your indoor air. That’s one option. Houseplants are a gentler complement: the NASA Clean Air Study showed certain species absorb benzene, formaldehyde, and trichloroethylene, and they also reduce stress, regulate humidity, and look far better than a white plastic box. That said, houseplants are not a substitute for mechanical filtration or ventilation — the lab conditions behind those NASA numbers don’t match a normal room (more on that below). Choosing the right species still matters: it’s the difference between a plant that merely survives on your shelf and one that pulls its weight as part of a broader air-quality routine.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. I’ve spent years analyzing aggregated owner feedback, cross-referencing horticultural data, and comparing the specific toxin-removal ratings of common houseplants to separate marketing claims from genuine air-purifying performance.
If you want living decor that pulls a little extra weight, look for the best indoor air purifying plants — species with a genuine (if modest) claim to VOC filtration, that thrive in low light, and survive the occasional watering forgetfulness.
How To Choose The Best Indoor Air Purifying Plants
Not every green leaf pulls toxins from the air with equal efficiency. The 1989 NASA Clean Air Study identified specific species that removed benzene, formaldehyde, and trichloroethylene from the air. When selecting, prioritize the plant’s natural VOC-removal rate, its light tolerance, and whether it poses any risk to pets or children.
Leaf Structure and Transpiration Rate
Plants with larger leaf surface areas and higher transpiration rates move more air and moisture through their leaves, which is generally believed to help with particulate settling and humidity. Broad-leafed species like the Arboricola and Maranta have more leaf surface area than plants with tiny, waxy needles, though neither of those two species was part of the original NASA testing — the NASA list focused on species such as the spider plant, bamboo palm, pothos, and several Dracaena varieties.
Light and Humidity Requirements
An air-purifying plant that sits in a dark corner and slowly dies cleans nothing. Each species has a minimum light requirement. Parlor Palms and Spider Plants tolerate low light well, making them ideal for bedrooms and offices with only artificial light. The Lemon Lime Maranta needs bright, indirect light to maintain its vivid coloration and leaf movement.
Pet Safety and Toxicity
Many common houseplants are toxic to cats and dogs. If you share your home with animals, confirm the species is listed as non-toxic by the ASPCA. Parlor Palms, Spider Plants, and Marantas (prayer plants) are ASPCA-listed as non-toxic to cats and dogs. The Arboricola / Schefflera (Heptapleurum arboricola), however, is toxic to both cats and dogs — its sap contains calcium oxalate crystals that irritate the mouth and gastrointestinal tract if chewed. Keep it out of reach of curious pets, or skip it in favor of one of the non-toxic species below. Always check the specific cultivar, as common names can be misleading.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Thorsen’s Greenhouse Parlor Palm | Mid-Range | Low-light corners, pet owners | 4-inch pot, pet-safe, low light | Amazon |
| Lemon Lime Maranta Prayer Plant | Mid-Range | Vivid foliage, unique leaf movement | 12-16 inch tall, bright indirect light | Amazon |
| Ocean Spider Plant 3-Pack | Budget | Multiple plants, budget entry | 3 plants, bright indirect light | Amazon |
| Shop Succulents Heptapleurum Arboricola | Premium | Broad-leaf air filtration, compact decor | 6-inch pot, air-purifying, drought tolerant | Amazon |
| Spider Plant Variety Pack (4-Pack) | Premium | Species diversity, hanging baskets | 4 varieties, GMO-free, up to 28 inches | Amazon |
In‑Depth Reviews
1. Thorsen’s Greenhouse Parlor Palm Plant
The Parlor Palm, or Neanthe Bella Palm (Chamaedorea elegans), is a close relative of the Bamboo Palm (Chamaedorea seifrizii) that NASA’s Clean Air Study actually tested — the two are often confused in gardening roundups, so we want to be precise here. It hasn’t been independently lab-tested the way its cousin was, but it shares the same broad, feathery fronds and is a genuinely easy, low-light houseplant either way. At 5-8 inches tall in a 4-inch pot, it stays compact enough for a bookshelf or desk.
The feathery fronds give the plant a tropical aesthetic that softens any space. It tolerates low to moderate light, meaning even a north-facing window or an LED-lit cubicle will keep it healthy. The ASPCA lists it as non-toxic, so it is safe around curious cats and dogs.
Shipping from Thorsen’s Greenhouse typically arrives well-packaged. Customer reports indicate plants arrive in good shape with minimal leaf damage. The lack of drainage holes in the cache pot means you must be careful not to overwater — use the inner nursery pot for proper drainage control.
What works
- Thrives in low light where other air-purifiers struggle
- ASPCA recognized as non-toxic for pets
- Compact size fits small desks and shelves
What doesn’t
- Cache pot lacks drainage holes — overwatering risk
- Slower growth rate than Spider Plants or Pothos
2. Lemon Lime Maranta Prayer Plant
The Lemon Lime Maranta is not just another green houseplant — its leaves are brushed with yellow and dark-green veins that create a vibrant, living pattern. This plant performs the nyctinastic leaf movement known as “praying hands,” folding its leaves upward at night. Note that the Maranta was not one of the species in the NASA Clean Air Study; it earns its spot on this list for foliage, humidity contribution, and easy care rather than a lab-verified VOC-removal rating.
At 12-16 inches tall when shipped, it arrives as an established plant ready to display. It requires bright, indirect light to maintain its vivid variegation — too much direct sun burns the leaves, and too little causes the colors to fade to plain green. Watering every 1-2 weeks when the top half of the soil dries out keeps it happy.
Hopewind Plants Shop packages each plant at their certified California facility. Customer feedback mentions excellent protective wrapping that prevents broken stems during transit. The plant is ASPCA-recognized as non-toxic, making it a safe choice for homes with pets.
What works
- Unique nightly leaf folding adds visual interest
- Large leaf surface area adds humidity and fresh-air appeal
- Established plant shipped at 12-16 inches tall
What doesn’t
- Needs bright, indirect light — not for dark rooms
- Requires consistent humidity to prevent leaf browning
3. Shop Succulents Heptapleurum Arboricola
The Arboricola, also known as the Dwarf Umbrella Tree (botanically reclassified from Schefflera arboricola to Heptapleurum arboricola), is a compact, broad-leafed plant. It was not one of the species included in the original NASA Clean Air Study — it earns its place here on the strength of its dense broad-leaf canopy and easy care, not a lab-verified VOC rating. Its leaves radiate outward like an umbrella, creating a full, bushy silhouette that makes it one of the most visually dense options available for small spaces.
This plant thrives in bright to partial light and is notably drought-tolerant, making it forgiving for those who occasionally forget to water. Shop Succulents ships it in a 6-inch nursery pot, a size up from the 4-inch starter pots used by most of the other plants on this list, so it arrives fuller and more established. The foliage is compact, so it does not outgrow its space quickly.
This listing is sold and shipped directly by Amazon.com, which means Prime shipping speeds and Amazon’s own return policy apply rather than a third-party greenhouse’s shipping practices.
What works
- Dense, broad leaves maximize air-contact surface area
- Drought-tolerant — survives missed waterings
- Ships in a fuller 6-inch pot; sold and fulfilled by Amazon.com
What doesn’t
- Not pet-safe — toxic to cats and dogs if chewed or ingested (see Pet Safety section above)
- Priced higher than the other 4-inch starter plants on this list
4. Spider Plant Variety Pack (4-Pack)
This pack from AUGUST BREEZE FARM delivers four distinct Spider Plant varieties — Ocean, Hawaiian, Green, and Bonnie Curly — in a single order. Spider Plants (Chlorophytum comosum) were one of the actual species in the NASA Clean Air Study, where they showed measurable formaldehyde removal under sealed test conditions — making them one of the few plants on this list with a genuine lab citation behind the “air-purifying” label. Having four different cultivars lets you fill multiple rooms with plants that each have slightly different leaf shapes and growth habits.
These are starter plants, but customer reviews consistently report they arrive as well-rooted, established plants rather than tiny cuttings. The Bonnie Curly variety produces crinkled, twisted leaves that add unusual texture to a hanging basket or shelf. All four are non-toxic and safe for pets.
Spider Plants are famously easy to propagate. This 4-pack essentially serves as a starter collection. Within a few months, each plant will produce “pups” (offshoots) that you can root in water or soil, expanding your collection at no additional cost. The plants are GMO-free, as advertised, and ship without chemical fertilizers.
What works
- Four distinct cultivars for visual variety
- Pet-safe and non-toxic
- Easy to propagate from plantlets
What doesn’t
- Starter plants — may need time to reach full size
- Requires bright, indirect light for best variegation
5. Ocean Spider Plant 3-Pack
This 3-pack from jmbamboo offers pure simplicity — three Ocean Spider Plants in a single order. Spider Plants are low-risk, high-reward air purifiers. They tolerate low light and irregular watering, making them ideal for first-time plant owners. Spider plants were one of the species tested in the NASA Clean Air Study and showed measurable formaldehyde removal in that sealed-chamber testing. (Note: no houseplant, including this one, is a substitute for a carbon monoxide detector — CO is a combustion byproduct that plants do not meaningfully filter.)
The plants prefer bright, indirect light but will survive in lower light conditions, though growth will slow. Keeping the soil evenly moist — not wet or bone dry — is the key to preventing brown tips. These are starter-sized plants, but they mature quickly and begin producing pups within the first year.
Shipping packaging receives mixed feedback. Some customers report perfectly healthy plants, while others mention cold exposure during winter delivery. The brand does not consistently mark boxes as fragile, so ordering during moderate weather improves your chances. Despite this, many customers report these plants lasting for years with basic care.
What works
- Budget-friendly entry to air-purifying plants
- Tolerates low-light conditions
- Easy to propagate from pups
What doesn’t
- Shipping packaging not always insulated for cold
- Starter plants — requires patience to reach full size
Hardware & Specs Guide
VOC Filtration Rate
Not all plants filter equal volumes, and the numbers people quote for “square feet per plant” come from sealed-chamber lab math, not real-room testing — in an open room with normal air exchange, the measurable effect of one or two houseplants on VOC levels is small. Broad-leafed species generally have more leaf surface area than narrow-leafed ones like Dracaenas, which is a reasonable proxy for potential uptake, but treat any specific room-coverage number (including the ones elsewhere on this page) as a rough rule of thumb rather than a lab-verified guarantee. If indoor air quality is a real concern (allergies, off-gassing new furniture, wildfire smoke), pair plants with a HEPA air purifier and good ventilation rather than relying on plants alone.
Transpiration and Humidity
Plants release moisture through transpiration, which increases room humidity. This is beneficial in dry, air-conditioned or heated spaces. A single Maranta or Arboricola can raise localized humidity by 5-10%. Spider Plants also transpire well, making them ideal for bedrooms where dry air affects sleep quality. Overwatering, however, reduces transpiration efficiency and risks root rot.
FAQ
How many air purifying plants do I need per room?
Can these plants survive in an office with no natural light?
Final Thoughts: The Verdict
For most gardeners, the best indoor air purifying plants winner is the Thorsen’s Greenhouse Parlor Palm because it combines easy low-light care, complete pet safety, and the classic houseplant good looks people want, in a single compact package — just remember that “air-purifying” here means a pleasant bonus, not a substitute for ventilation. If you want vivid foliage and unique leaf movement, grab the Lemon Lime Maranta Prayer Plant. And for maximum coverage across multiple rooms, nothing beats the Spider Plant Variety Pack — four different cultivars that multiply for free.