What are easy to care for plants which can improve the air quality in my small flat?
There are some indoor plants that are easy to take care of and can help clean the air in your small flat.

1. **Snake Plant** (Mother-in-Law's Tongue): Great for beginners. It can grow in low-light conditions and requires minimal watering.

2. **Spider Plant**: Easy to care for and can grow in various lighting conditions. It only needs moderate watering.

3. **Peace Lily**: Known for its beautiful white flowers, this plant can grow in low-light conditions and requires minimal watering.

4. **Aloe Vera**: Improves air quality but also has several health benefits. It can grow in bright sunlight and requires minimal watering.

5. **Boston Fern**: Great for improving humidity levels in your home, which can help improve air quality. It can grow in low to medium light and requires moderate watering.

These plants are not only easy to care for but can also help improve air quality in your small flat. They remove toxins like *carbon monoxide, trichloroethylene, formaldehyde, benzene* and *xylene* from the air. They're a great addition to any home!
Of these, which are pet safe?
When considering pet-safe plants among the options mentioned earlier, the following plants are non-toxic to both cats and dogs:

1. Spider Plant (Chlorophytum comosum): This easy-to-care-for plant is safe for pets and helps improve indoor air quality.

2. Boston Fern (Nephrolepis exaltata): Another pet-friendly option, Boston Ferns are great for improving humidity levels and air quality.

However, the other plants mentioned earlier - Snake Plant, Peace Lily, and Aloe Vera - can be toxic to pets, especially cats and dogs, if ingested. If you have pets at home, it is essential to either choose pet-safe plants or place toxic plants in areas where your pets cannot access them. Always monitor your pets around houseplants and consult your veterinarian if you suspect plant ingestion or notice any unusual symptoms.