ENSY HRV Filters

ENSY HRV filters are exact-fit replacement filter sets for ENSY heat recovery units. Designed for a tight fit inside ENSY AHU systems, these filters help maintain stable airflow, protect the heat exchanger, and support cleaner indoor air.

Our ENSY filter sets are made in Lithuania and supplied as practical two-filter sets for supply and extract air. Browse all HRV / recuperator filters, check delivery & shipping, or contact us if you need help choosing the right set.

ENSY filters for AHU and Ceiling units

This category includes filter sets for popular ENSY models such as AHU 200, AHU 300, AHU 350, AHU 400, AHU 300 Ceiling and AHU 400 Ceiling. Always match the exact model and filter dimensions before ordering.

F7 filter sets for clean supply air

ENSY filter sets on this page are focused on F7 filtration, helping capture finer airborne particles while maintaining strong airflow. A correct fit reduces bypass air around the frame and helps your ventilation unit work more efficiently.

Why exact dimensions matter

The most common reason replacement filters underperform is incorrect sizing. A filter that is too small may allow unfiltered air to pass around it, while a filter that is too large may not fit or seal correctly. Before ordering, check the unit label and compare the dimensions with your existing set.

How often should you replace ENSY filters?

For most homes, replacing filters 2–3 times per year is a practical maintenance schedule. In dusty areas or near heavy traffic, more frequent replacement may help maintain better air quality and stable airflow.

Shipping across Europe

Filters1.eu ships ENSY replacement filters across Europe. Delivery cost is calculated at checkout based on destination country. If you are unsure which ENSY set you need, send us your unit model or a photo of the unit plate and we will help you match the right filters.