I have seen that at my air sensor a little bug, by making a nest, has closed the end of the hose.
Removed the litter but now continues to give wrong values.
Not only the end of the hose was clogged, but also the sensor itself.
Now everything is clean and the sensor seems to be working normally again
here the insects are very curious with my sensors. To reduce maintenance, I use pieces of mosquito net at each access point to mysensors
Mason bees, very cute and effective pollinators.