Ilto/ Swegon Casa 300 | 350 | 400 | 400 M | Onnline 100 | Onnline 120 - Coarse filters (2 pcs)

The coarse filter fabrics for supply and exhaust air often become dirty faster than the fine filter cassette for supply air. By ordering additional coarse filters, you can replace only the supply and exhaust air coarse filter fabrics when needed, without having to change the fine filter cassette.

We have chosen a domestic manufacturer for our replacement filters, whose high-quality domestic materials, construction, and features closely match those used in the original factory filters. Our goal is to offer customers solutions for good indoor air quality, low pressure drop, long service life, and low energy consumption.

Remember to replace the filters regularly. Clogged filters do not function as intended.

The recommended filter replacement interval is 2–3 times per year. A good rule of thumb is to change the ventilation filters in spring and autumn.

Also remove any loose dirt from the ventilation unit, e.g., by vacuuming.

Check the cleanliness of the heat recovery unit and clean it with a suitable cleaner if necessary.

Good indoor air is dust-free, odorless, draught-free, and tasteless – it’s almost “unnoticeable.” But everyone can feel its positive effects, consciously or subconsciously.

In contrast, poor indoor air and its problems are usually noticed very quickly.

Filters are among the most important parts of a ventilation system and have a significant impact on indoor air quality. That’s why investing in proper filter maintenance and quality is essential to minimize harmful air pollutants and particles from outdoor air, and to improve the health impact of indoor air.