Question:
Is it permissible to bat a mosquito out of the air on Shabbos when it is clear that the mosquito is preying on people in the room?
Thank you
Answer:
If you are trying to kill it is not permitted. If you are only batting it in order to chase it away, if it will surely kill it, then it is not permitted, however if it will not surely kill it, and you only mean to chase it away, it is permitted. The fact that you are touching it is not an issue of muktza as it is considered tiltul b’gufo.
Best wishes