yeah, Germany loves its rules! But there’s also a strong Christian tradition, and if it taught me anything, is that it’s easier to ask for forgiveness than for permission ^^
At least it’s not a big volume and with the electric ventilation in the door frame, the air should recycle quickly. We will have a couple of CPU fans (or similar), with an airflow of up to 120 m³ per hour, it shouldn’t be too hard to refresh the complete volume of the building. But I’ll get a CO2 monitor, I wanted to get one for checking the air quality when we use our fireplace in winter too.
i take her with me, she can enjoy the smell, my small little revenge for making me clean her toilet