Lüften1 is designed to deliver fresh, filtered outdoor air while exhausting stale indoor air through a crossflow energy-recovery core. Performance is based on internal testing under typical residential conditions. Actual results may vary depending on climate, room size, installation quality, and building airtightness.

Lüften1 improves indoor air quality by exchanging stale air with filtered outdoor air. It includes a MERV-7 filter that captures common household particles such as dust and pollen, but it is not a medical or HEPA-grade purifier. Lüften1 does not eliminate airborne viruses, bacteria, or allergens; instead, it increases ventilation and helps reduce the buildup of indoor pollutants such as CO₂, moisture, and odors.

Condensation/Frost Note: Lüften1 uses internal software logic to reduce condensation and frost risk. In extreme cold or high-humidity conditions—especially with poor window sealing or improper installation—condensation risk may still increase. Always follow installation and operating guidelines in the user manual.

Efficiency: Efficiency values (up to ~80%) are based on internal calculations using specifications from the Recutech plate heat exchanger. Real-world performance varies with ambient conditions, fan speed, and installation. Suggested room coverage assumes ~0.35–0.5 ACH in an 8-ft-ceiling room; actual performance depends on room volume and window fit.

Intended Use: Lüften1 is intended for single-room applications. It is not a replacement for central HVAC systems, whole-home dehumidifiers, or medical-grade air cleaners. Best suited for bedrooms, offices, and studio-size spaces. Product design, specifications, and performance data may change without notice. Appearance may differ slightly between production units.

Patent Status:

Lüften1™ — Patent Pending (U.S. & Canada).

All product designs, mechanical structures, airflow paths, foam collar geometry, and control logic are protected under pending intellectual property filings.