Filter set for Energy Comfort D400 / Comfort Plus — coarse 65% and ePM1 55% replacement filters

Replacement filter set for Energy Comfort D400 and Comfort Plus ventilation units, consisting of a coarse 65% filter and an ePM1 55% fine filter. The combination is engineered to retain larger particles and PM1-class airborne contaminants, helping to maintain indoor air quality and to protect heat-exchange surfaces and fan components from dust accumulation. The filters are intended for routine maintenance and seasonal replacement to ensure continued ventilation performance.

Advantages

The coarse 65% filter captures larger dust, pollen and fibres, reducing strain on downstream components, while the ePM1 55% fine filter targets smaller particulate matter including PM1, improving overall filtration efficiency. Together they offer staged particle removal that helps preserve the ventilation unit’s thermal efficiency and reduces the frequency of deep cleaning. The filters are compatible with Energy Comfort D400 and Comfort Plus units and are designed for straightforward replacement during scheduled maintenance.

Suitable for

• Routine maintenance and seasonal filter replacement in residential ventilation systems
• Protecting heat exchangers and fans in Energy Comfort D400 and Comfort Plus units
• Reducing indoor particulate load from dust, pollen and fine PM1 particles
• Applications where staged coarse and fine filtration is required

Key specifications

• Filter set composition: one coarse 65% filter and one ePM1 55% fine filter
• Filtration classes: coarse 65% for larger particles; ePM1 55% for PM1-class fine particles
• Function: staged particle capture to protect ventilation components and maintain air quality
• Compatibility: designed for use with Energy Comfort D400 and Comfort Plus ventilation units
• Intended use: routine and seasonal replacement to sustain ventilation performance

How to use

Turn off the ventilation unit and follow the manufacturer’s service instructions for safe access to the filter compartment. Remove the old filters and inspect the filter housings for dust build-up; clean the compartment if required. Install the coarse 65% filter in the primary intake position and place the ePM1 55% filter in the downstream position according to the unit’s filter orientation markings. Ensure filters fit securely and close the compartment before restarting the unit. Observe any airflow or pressure indicators after replacement to confirm correct installation.

Usage recommendations

Replace filters according to the ventilation unit’s maintenance schedule or sooner in environments with elevated dust or pollution. Regular inspection will help detect clogging and maintain airflow; disposing of used filters following local regulations is recommended. For best results, use the coarse 65% filter and ePM1 55% fine filter together as a set.