In recent years, indoor plants have become more than just a trendy design choice—they are now recognized for their health benefits, particularly their ability to purify the air. Many common houseplants can remove toxins such as formaldehyde, benzene, xylene, and carbon monoxide, helping to improve the air quality in your home. This makes them not only beautiful additions to your decor but also practical tools for creating a healthier living environment.
Whether you live in a large house or a small apartment, there are plants suited to every space and light condition. In this guide, you’ll discover some of the best air-purifying plants to have at home and learn how to care for them effectively.
Why Air-Purifying Plants Matter
Indoor air can contain a surprising number of pollutants. Common household items like furniture, paint, cleaning products, and carpets can emit volatile organic compounds (VOCs) that may affect respiratory health, cause headaches, or reduce sleep quality. Poor ventilation only worsens the problem, especially in well-sealed modern homes.
NASA’s Clean Air Study famously explored the ability of plants to filter air pollutants. While the study took place in sealed environments and real-world results may vary, it still offers valuable insight into the types of plants that can contribute to fresher, cleaner air.
In addition to removing toxins, plants also boost oxygen levels, increase humidity, and contribute to mental well-being through their calming, natural presence.
Best Air-Purifying Plants to Have at Home
Snake Plant (Sansevieria trifasciata)
Also known as mother-in-law’s tongue, the snake plant is one of the most resilient houseplants available. It removes toxins like formaldehyde, benzene, and xylene and is particularly effective at converting CO2 into oxygen at night.
- Light: Tolerates low to bright indirect light
- Water: Allow soil to dry completely between waterings
- Bonus: Excellent for bedrooms due to its nighttime oxygen release
Spider Plant (Chlorophytum comosum)
Spider plants are fast-growing and produce attractive arching leaves with small “babies” that can be propagated easily. They are effective at filtering carbon monoxide, formaldehyde, and xylene.
- Light: Bright, indirect sunlight
- Water: Keep soil lightly moist, but allow the top inch to dry out
- Bonus: Non-toxic and safe for homes with pets
Peace Lily (Spathiphyllum)
Peace lilies are not only beautiful with their dark green leaves and white flowers, but they are also powerful air purifiers. They can remove ammonia, benzene, formaldehyde, and trichloroethylene from the air.
- Light: Low to medium indirect light
- Water: Water when soil feels dry; they’re forgiving of occasional neglect
- Bonus: Also helps increase indoor humidity
Caution: Peace lilies are toxic to pets if ingested.
Aloe Vera
Known for its soothing gel, aloe vera is another low-maintenance plant with air-purifying qualities. It helps remove benzene and formaldehyde, often found in household cleaners and paints.
- Light: Bright, direct sunlight
- Water: Let the soil dry completely between waterings
- Bonus: Use the gel in aloe leaves for burns or skin care
Boston Fern (Nephrolepis exaltata)
Boston ferns are natural humidifiers and great for removing pollutants like formaldehyde and xylene. Their feathery leaves bring a lush, soft touch to any room.
- Light: Indirect light or filtered sun
- Water: Keep soil consistently moist and mist regularly
- Bonus: Helps add moisture to dry indoor air
Rubber Plant (Ficus elastica)
This elegant plant with glossy leaves is known for removing toxins like formaldehyde and for being relatively low maintenance.
- Light: Bright, indirect light
- Water: Let the top layer of soil dry out between waterings
- Bonus: Grows tall and makes a bold statement in living rooms or offices
Caution: Can be toxic to pets and small children if ingested.
Areca Palm (Dypsis lutescens)
Also known as the butterfly palm, this plant not only purifies the air but also adds tropical beauty to any space. It helps remove pollutants and boosts humidity.
- Light: Bright, filtered light
- Water: Keep the soil slightly moist; don’t let it dry out completely
- Bonus: Safe for pets and great for larger spaces
English Ivy (Hedera helix)
English ivy is a trailing plant perfect for hanging baskets or shelves. It is particularly effective at absorbing mold spores and airborne fecal particles, making it ideal for bathrooms.
- Light: Bright, indirect light
- Water: Water when the soil feels dry to the touch
- Bonus: Can grow in soil or water
Caution: Toxic to pets if consumed.
Bamboo Palm (Chamaedorea seifrizii)
This elegant, upright palm thrives indoors and is great for removing airborne toxins like benzene and formaldehyde. It also contributes to better humidity levels.
- Light: Indirect sunlight
- Water: Water thoroughly when the top inch of soil is dry
- Bonus: Adds a soft, natural touch to living rooms and offices
Pothos (Epipremnum aureum)
Pothos is one of the easiest houseplants to grow and is great at filtering formaldehyde, benzene, and carbon monoxide. Its heart-shaped leaves trail beautifully from shelves or hanging pots.
- Light: Low to bright indirect light
- Water: Water when the top inch of soil is dry
- Bonus: Excellent beginner plant
Caution: Toxic if ingested by pets or humans.
Tips for Keeping Air-Purifying Plants Healthy
To get the best benefits from your plants, you’ll need to keep them healthy and thriving. Here are a few basic tips to maintain them properly:
- Clean leaves regularly: Dust buildup can block light and hinder a plant’s ability to photosynthesize. Wipe leaves with a damp cloth every few weeks.
- Rotate plants: Turn your pots occasionally to ensure even growth and prevent them from leaning toward the light source.
- Avoid overwatering: Most houseplants are more likely to suffer from too much water than too little. Always check soil moisture before watering.
- Use proper pots and soil: Make sure containers have drainage holes and use high-quality potting mix suitable for indoor plants.
- Fertilize sparingly: Use a balanced, water-soluble fertilizer every few weeks during the growing season (spring and summer).
How Many Plants Do You Need?
While any number of houseplants can bring joy and beauty to your home, studies suggest that the air-purifying effect becomes noticeable when you have several plants in each room. As a general guideline, NASA’s study recommended at least one plant per 100 square feet of indoor space for effective air filtration.
However, don’t feel pressured to fill every corner. Even a few strategically placed plants can contribute to a cleaner, more comfortable atmosphere.
Final Thoughts
Air-purifying plants are a wonderful way to blend beauty and health benefits in your home. Not only do they remove harmful toxins, but they also help reduce stress, boost mood, and create a soothing environment. With a variety of plants suited for different light and care requirements, there’s something for everyone—even if you’re just starting your plant journey.
Begin with one or two easy-to-care-for options like the snake plant or pothos, and gradually expand your indoor garden as you gain confidence. Your lungs—and your home’s ambiance—will thank you.