Houseplants can help prevent condensation on windows as they absorb moisture in the air and  can help maintain appropriate humidity levels in the room.

Some plants that are particularly effective at reducing humidity are plants like  aloe vera  , a plant known for its ability to absorb humidity and easy to grow.

Pothos  are also very effective at removing moisture from the air and thrive in low light conditions.

Keeping some of these plants indoors can help maintain appropriate humidity levels and consequently prevent condensation on the windows.

However, it is important to note that  proper ventilation and insulation  are still the best ways to prevent condensation on windows.