If it's really not difficult I will also try to install it. Safety is paramount, especially in our time. We need to use our smartphones not only to talk or post on the Internet.
You have to monitor the quality of credit history, you have to monitor honesty and integrity, but the question is whether the data from the bank corresponds to reality. After all, there are times when a loan is fully repaid, but is listed on a person's record, and now he has to give up work and household chores and run, write applications, search, knock, and so on. I wonder if it wouldn't be easier for you to check with the financial institutions right away. Somehow you are so good and the borrowers - look you have to do it and control it.
There are several reasons for the stench from the air conditioning system:
microbial growth
unauthorized odors in the room
absence of siphon on moisture exhaust pipes
long downtime
clogged drain
time to change the filter