We live in an apartment, and since a couple of months, my girlfriend suffer from all sort of lung/breath/throat problems. ( Multiple visits to the Doctors give the same result: she has nothing, might be allergy. But she also have been tested for allergies, and nothing to declare in that part )
Since a couple of weeks, I also start to have throat problem, and I'm someone that have a natural good heal, I'm almost never sick.
Even if we see nothing, and keep the place clean, I'm starting to think that there might be mildew or fungus in wall, roof, or anyplace that we can't inspect visually, and lead to a bad/toxic air.
How can we check if we have that kind of problem without opening the walls ?