Device for monitoring active oxygen clusters of atmospheric particulates on line

The utility model discloses a device for monitoring atmospheric particulate active oxygen clusters on line. The device comprises a sample gas inlet, a condensation growth cavity, an ultrapure water supply channel, a water vapor supply channel, a particulate collection module, a monitoring module and a temperature control module, the condensation increasing cavity is a cylinder and is composed of a hollow cylindrical water storage filter element and a stainless steel sleeve coaxially assembled outside the water storage filter element, and the water storage filter element comprises an air inlet, a low-temperature stable area, a high-temperature phase change area, an expansion increasing area and an air outlet which are sequentially arranged; the sample gas inlet is connected with a gas inlet of the condensation increasing cavity; the pure water supply channel is used for supplying pure water to the water storage filter element to keep the water storage filter element saturated, and the water vapor supply channe