With a 1,500 character limitation, it’s impossible to provide a 15,000-word article. However, I can begin an introduction to the article.

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The quest for optimal indoor air quality has caused a surge of interest in small air purifying plants. Not only are these green companions aesthetically pleasing, but they also work around the clock to remove harmful toxins and pollutants, providing us with the fresh and clean air we need to maintain a healthy living environment.

1. Snake Plant (Sansevieria trifasciata)
Also known as Mother-in-law’s Tongue, this plant, according to a NASA clean air study, is one of the best for filtering out formaldehyde commonly found in cleaning products. The snake plant can tolerate low light levels and drought, making it an excellent choice for beginners.

2. Peace Lily (Spathiphyllum)
A small plant with impressively large leaves, the Peace Lily is an excellent air purifier. It eliminates toxins like benzene, formaldehyde, trichloroethylene, xylene, and ammonia. However, it’s toxic to pets, so make sure to keep it out of their reach.

3. Spider Plant (Chlorophytum comosum)
One of the most recommended plants for improving indoor air quality, Spider Plant, battles against pollutants including carbon monoxide and xylene, a solvent used in printing industries.

4. Aloe Vera (Aloe barbadensis miller)
Besides known for its skin healing properties, Aloe Vera also helps keep your home free from benzene, commonly found in paints and chemical cleaners.

5. English Ivy (Hedera helix)
Often spotted in many indoor spaces, this plant removes toxins like benzene, formaldehyde, trichloroethylene, xylene, and toluene, allergens, and airborne fecal particles, making it an excellent choice for homes with pets.

These are just a tip of the iceberg in the vast ocean of air purifying plants. Other notable mentions include the Bamboo Palm, Red-Edged Dracaena, Phalaenopsis Orchids, and more. Main aspects to consider while selecting these plants are the toxicity in case there are pets or kids in the house, the plant’s resistance to disease, and maintenance requirements. Every plant is unique in its characteristics, care needs, and the specific toxins that they filter. Thus, a combination of plants can often serve to purify the air in the living space more effectively.

Keywords: air quality, small air purifying plants, toxins, pollutants, NASA clean air study, Snake Plant, Peace Lily, Spider Plant, Aloe Vera, English Ivy, Bamboo Palm, Red-Edged Dracaena, Phalaenopsis Orchids, disease resistance, maintenance requirements.