Fresh Air Valve With Thermostat

The Fresh Air Valve With Thermostat is one of those simple, clever designs that just makes sense. It quietly keeps air fresh indoors while helping your home or office stay energy‑efficient — no wiring, no noise, no constant adjusting.

The secret lies in its built‑in mechanical thermostat, which automatically reacts to outdoor temperature changes.
When it’s warm outside (above +10 °C), the valve opens fully to let in clean, fresh air. As temperatures drop below –5 °C, it closes on its own, preventing chilly drafts and unnecessary heat loss. Everything happens through precise thermal expansion technology, so it runs completely without electricity.

You can also manually close the valve if needed — a small detail that adds flexibility without complicating anything.

This kind of passive ventilation is ideal for nearly any space — apartments, homes, offices, meeting rooms, kitchens, bathrooms, or storage areas — anywhere you want consistent airflow without mechanical systems humming in the background.

It’s quiet, intuitive, and maintenance‑free. The Fresh Air Valve With Thermostat doesn’t call attention to itself — it simply works, keeping your indoor air fresher and your heating system more efficient, season after season.

Dimensions (unit: mm):