Compatible with heat pump dryer filters 8433, PA0, DE8635RX, DS7512PA; parts 2964840200 and 2964840100. Suitable for electric and dryer heat pump systems. For health and efficiency, regular replacement is recommended. Please check the models on the detail page to confirm device compatibility before ordering. Made of high quality sponge material. Robust and durable, these replacement filters effectively filter out bacteria and dirt. The sponge filters help keep your tumble dryer clean and ensure your heat pump dryer maintains peak performance. Health protection is a priority. The cleanliness of your environment matters, so replace the filter every 60 days. It helps filter harmful substances, supporting the well-being of you and your family. Note: Not all filters are designed the same. Please review the corresponding models on the detail page before ordering to avoid compatibility problems. Use scenarios: - Regular home use: fit for daily laundry with a heat pump dryer to maintain airflow, reduce lint buildup, and sustain energy efficiency. - Pet owners or allergy-prone households: helps reduce bacteria and dirt in the dryer exhaust, contributing to better air quality. - High-use periods or long storage intervals: replace to preserve clean airflow and dryer performance.