• Fresh Air

    Constantly exchanges stale indoor air with fresh outdoor air.

  • Energy Efficient

    Recovers up to 85% of heat and humidity from exhaust air.

  • Easy Installtion

    Installs in a sliding window in 5 minutes - no tools required.

  • MERV-7 Filter

    Enhances fresh outdoor air by trapping pollen and dust.
  • At its heart lies a meticulously engineered, high-efficiency aluminum energy
    core where the transformation happens: stale indoor air passes through one side
    as it leaves your home, transferring its heat and gentle moisture across a
    thin, specialized membrane to the clean, incoming air.
    The two air streams never mix — only their energy does — creating a
    continuous, simultaneous flow of fresh and exhaust air, a first of its kind in
    a compact, window-mounted design.
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Luften1 - ERV Series

$1,299.00 CAD
$1,299.00 CAD
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Color: White
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  • Quick and Easy Instalation

    Lüften1 installs in minutes using a flexible closed-cell foam collar that seals tightly without tools or damage. The soft foam adapts to window frames of different shapes, keeping air leaks and vibrations out.

  • Integrated MERV 7 Filter

    Lüften1 uses high-performance MERV 7 filters on both the intake and exhaust sides to keep your air and the unit clean. These filters capture dust, pollen, and fine particles that typical window fans or vents let through.

  • Indoor Humidity Control

    Balanced ventilation systems such as ERVs and HRVs help reduce the risk of mold growth by continuously replacing humid, stagnant indoor air with fresh outdoor air, making it harder for mold and mildew to thrive.

  • Fully Automated System

    Lüften1’s intelligent control system automatically balances airflow for comfort, efficiency, and safety. It continuously monitors temperature and humidity to prevent condensation inside the heat exchanger.
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Disclaimers

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.