Is it okay to do dark spraying in the apartment?

The nature of housing is that apartment buildings must be safe. These facilities meet the relevant requirements. It can't be renovated or demolished. But you can hide the fire sprinkler.

Apartment: public apartment, divided into business apartment and employee apartment. It is a commercial or real estate investment residential form, and its appearance is generally satisfactory. Each floor has several suites, public corridors, bathrooms and so on. , mainly convenient for office life and external leasing. Business apartment refers to a hotel or villa that can be used for personal use or rented conveniently, with appropriate space size, compact layout and economy. Staff apartments also include school dormitories, which are more convenient and practical.