Recirculators of bactericidal household and industrial use (an actual device in our time in the fight against the Covid-19 pandemic). A bactericidal recirculator is a device containing a bactericidal lamp as a radiation source and intended for disinfection of the air environment or surfaces in a room. The recirculator can be operated in the presence of people, animals and plants – the decontamination zone in closed-type recirculators is located inside the housing, so its use is allowed even in the presence of children. The scope of the recirculator is household, if necessary industrial, administrative, public and warehouse premises with a large crowd of people. Recirculators are divided into three types, according to the volume of indoor air disinfection-up to 30, 50 and 100 m2.