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Back in 1980, NASA began researching ways to improve air quality in enclosed environments. After years of study, researchers confirmed that certain houseplants can meaningfully improve indoor air by reducing airborne toxins and supporting a fresher, healthier atmosphere. It’s remarkable to think that something as simple as a potted plant can help remove volatile substances such as formaldehyde, benzene and ammonia, while also contributing to improved mood and easing seasonal allergy symptoms. For most homes, a few minutes a week spent watering and tending plants pays off in cleaner air and a more pleasant living space.
Indoor air can often be more polluted than outdoor air—sometimes several times over—because everyday items like carpets, cleaning products, paints and personal care supplies release volatile organic compounds (VOCs) into the home. While choosing natural fibers, eco-friendly cleaners and minimizing chemical use are important steps, adding the right houseplants gives an extra layer of natural filtration. Based on the original research and subsequent horticultural experience, certain varieties stand out for their ability to thrive indoors while helping to cleanse the air.
Below are some of the most effective and resilient air-purifying houseplants. They’re well-suited to typical indoor conditions and generally easy to care for, making them a great choice even for beginners.
- Bamboo Palm
- Rubber Plant
- Spider Plant
- English Ivy
- Janet Craig Dracaena
- Dwarf Date Palm
- Boston Fern
- Peace Lily
- Corn Plant
- Schefflera
Most of these species are hardy and forgiving, so you don’t need green-thumb-level expertise to keep them healthy. You don’t have to fill every shelf or surface with pots—two or three well-placed plants per room are usually sufficient to notice benefits. Place plants where you spend the most time, such as beside the bed, near a home office desk, or in a living area. Even positioning them next to electronics or media centers helps capture airborne particles and offset emissions from household items.
Practical care tips: match plants to light levels (low-light plants like the snake plant or certain dracaenas do well in shaded corners, while palms and ferns prefer bright, indirect light), water consistently but avoid overwatering, and refresh the top layer of soil or repot when a plant becomes root-bound. A light dusting of foliage cleans the leaves and helps plants photosynthesize more efficiently. If you have curious pets or children, research pet safety for each species and consider placing toxic plants out of reach or choosing non-toxic alternatives.
If pets are inclined to dig in pots, a decorative layer of river rocks over the soil discourages pawing while keeping planters attractive. For humidity-loving plants like ferns, occasional misting or grouping plants together can raise local humidity and improve plant vigor. For those who travel or occasionally neglect watering, choose drought-tolerant options such as the rubber plant or spider plant, which recover quickly from brief dry spells.
Beyond plant care, improve indoor air further by reducing sources of pollutants: ventilate when weather permits, use low-VOC paints and finishes, choose natural fiber rugs and upholstery when possible, and opt for fragrance-free or eco-friendly cleaning products. Together with well-chosen houseplants, these steps create a healthier, more comfortable home environment.
What houseplants brighten your day and survive your schedule? Which ones have you found nearly impossible to kill? Share your favorites and any additional tips you use for cleaner indoor air and healthier living spaces.
More Plant Guides
If you’d like further reading on popular and easy-care indoor plants, consider these topics:
- Snake Plant Care Guide
- Fiddle Leaf Fig Care Guide
- Tree Philodendron Care Guide
- How to Build an Easy Plant Shelf
- Protecting Outdoor Plants in a Deep Freeze
- Getting Started with Houseplants: An Expert Interview
- Recommended Faux Plants for Low-Maintenance Decor
- Easy Houseplants to Keep Alive
Update: We discussed which plants have proven easiest to care for in our home and shared experiences about keeping them alive—check out guides on beginner-friendly selections and maintenance tips for more practical advice.
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