Usually the environment of our bathroom is relatively dark and damp, with insufficient light and some peculiar smell. Therefore, plants suitable for toilet cultivation must be shade and humidity resistant, and can absorb certain odors to purify the air and beautify the environment.
There are many plants that are suitable for keeping in the bathroom, and here are some recommendations:
1.Spider plant: Spider plant is a very suitable plant for cultivation in the bathroom, it has a strong air purification ability, can absorb harmful substances in the air, such as formaldehyde, benzene, etc., and can also purify bacteria and viruses in the air. 
2.Aloe vera: Aloe vera is highly adaptable and can grow in dark and damp environments, while also absorbing odors and pollutants from the air to keep the air fresh. 3.Dracaena: Dracaena is a plant that is very suitable for cultivation in the bathroom, it has a strong adaptability and can grow in a dark and damp environment, while also absorbing odors and pollutants from the air to keep the air fresh. 
4.Tiger Piran: Tiger Piran is a plant that is very suitable for breeding in the bathroom, it is highly adaptable and can grow in a dark and damp environment, while also absorbing odors and pollutants from the air to keep the air fresh. 
5.Pothos: Pothos is a plant that is very suitable for cultivation in the bathroom, it has a strong adaptability and can grow in a dark and humid environment, while also absorbing odors and pollutants from the air to keep the air fresh.
The size of these plants can be determined according to the size of the bathroom, if the bathroom space is relatively small, put a small and delicate potted plant on the washing countertop or window sill. If the bathroom is relatively large, you can put some large pots of green plants in the corner of the floor of the bathroom. 
The above are some recommended plants suitable for cultivation in the bathroom, they all have strong adaptability and air purification ability, which can effectively improve the air quality of the bathroom.
You can choose the plants that suit you according to your preferences and environment.