In 1980, NASA began studying ways to provide clean air in enclosed environments. After years of research, scientists confirmed that common houseplants can improve indoor air quality in several meaningful ways. It’s remarkable to realize you can literally cultivate fresher air at home. Plants not only bring visual life to a room, they can also help reduce airborne contaminants, ease seasonal allergies for some people, and improve overall comfort and mood. For the modest investment of a few minutes of watering and light care each week, houseplants offer benefits that make them well worth keeping around.
Many homeowners are surprised to learn that indoor air can be significantly more polluted than outdoor air—sometimes by several times—because everyday items like carpets, cleaning products, paints and solvents steadily release volatile organic compounds (VOCs). Even seemingly harmless products such as nail polish remover or certain aerosol cleaners can contribute to poor indoor air quality. Choosing greener alternatives for rugs and cleaning agents helps, and pairing those choices with live plants provides an additional, natural layer of air improvement. Whether you’re aiming to reduce formaldehyde, benzene or other common VOCs, adding a few hardy plants to key rooms is a simple, attractive strategy.
While almost any living plant contributes some benefit, researchers identified certain varieties as particularly effective at filtering indoor pollutants. If you want to maximize the air-purifying effect, consider these dependable species. They tend to be resilient, forgiving of uneven care, and suitable for typical home light conditions. Two or three appropriately sized plants per room is usually sufficient to notice a difference in ambiance and perceived air freshness.
- Bamboo Palm
- Rubber Plant
- Spider Plant
- English Ivy
- Janet Craig Dracaena
- Dwarf Date
- Boston Fern
- Peace Lily
- Corn Plant
- Schefflera
These varieties are known for their ability to tolerate indoor conditions while contributing to cleaner air. They are generally easy to maintain: regular but moderate watering, occasional pruning of dead leaves, and placing them where they receive appropriate light will keep them thriving. Placing plants where you spend the most time—beside the bed, on a desk, or near a frequently used seating area—lets you enjoy their presence and benefits every day. If pets or curious children are part of your household, consider positioning plants out of reach or using decorative barriers to protect both the plants and your family.
For homes with playful dogs that tend to dig in pots, a practical tip is to add a shallow layer of smooth river rocks on top of the soil. This prevents digging while still allowing water to reach the roots and keeps the planter looking neat. Another useful approach is grouping plants of similar light and water needs together; this simplifies care and helps them stay healthy over time.
Beyond air purification, houseplants can lift mood and create a more tranquil environment. Caring for greenery gives many people a sense of routine and satisfaction, and observing growth and seasonal changes brings a small, steady joy. If you’re new to indoor gardening, start with one or two of the hardier options listed above and build from there as you learn what grows best in your home’s light and humidity conditions.
More Plant Guides
If you want to learn more about common houseplants and how to care for them, here are some helpful topics to explore in your own research: snake plant care, fiddle leaf fig care, philodendron varieties, building simple plant shelves, protecting outdoor plants from cold snaps, beginner-friendly houseplants, and realistic faux plant options for low-maintenance decor. These subjects cover practical tips for watering, light requirements, repotting, and ways to keep plants healthy indoors.
Update: We’ve also shared notes about which plants we find easiest to keep alive in our own home; if you’re just getting started, begin with the hardier species listed above and adjust care as you learn what works in your space.