Air disinfection effect pipeline evaluating system

Abstract

The invention discloses an air disinfection effect pipeline evaluating system, which is characterized by comprising microorganism aerosol generating equipment, an airtight cabinet, two samplers and an air pump, wherein a main machine of the microorganism aerosol generator is arranged outside the airtight cabinet; an atomizing cup containing a microorganism solution is kept in the airtight cabinet; the main machine of the microorganism aerosol generator is connected to the atomizing cup through a soft hose; the air pump of one of the samplers is pre-arranged in the airtight cabinet, and a sampling head is kept outside the airtight cabinet, and an inlet and an outlet of the sampling head of the sampler are independently communicated with the airtight cabinet, thus forming a closed loop; an air purifier is arranged outside the airtight cabinet, and an air inlet of the air purifier is communicated with the airtight cabinet while an air outlet of the air purifier is connected to an inlet of the other sampler; an outlet of the other sampler is connected into the airtight cabinet to form a closed loop; an air filter is arranged on the airtight cabinet. The evaluating system disclosed by the invention can effectively evaluate a transient disinfection effect of the air purifier on the aerosol microorganism therein, and simultaneously solve a problem on biological safety in a microorganism aerosol experiment.

Description

technical field [0001] The invention can be used in the fields of public health and environmental sanitation, and includes a set of closed systems for generating and sampling bacteria, fungi and virus microbe aerosols. It is used by health supervision, quality inspection institutions and air purification product research and development institutions to evaluate the one-time killing effect of air purification products on air microorganisms passing through it. Background technique [0002] The health hazards caused by air pollution have become particularly serious in recent years. According to research reports (Lancet2012; PLOS Med2013; Am J Epidemiol.2013), air pollution can not only cause respiratory damage, but also cause cardiovascular diseases and birth defects in newborns. due to air pollution. In particular, air-borne infectious diseases such as SARS, bird flu and tuberculosis pose a direct threat to human health, and people pay more and more attention to the air qual...

AI Technical Summary

Problems solved by technology

This method can evaluate the disinfection effect of the microorganisms in the aerosol in a certain space after the purifier is turned on for a certain period of time, but it is difficult to compare the changes before and after the aerosol passes through the air purifier once

Moreover, because aerosols are easily affected by environmental factors such as airflow and temperature, the results of room tests often lack repeatability; the evaluation method of this test is difficult to avoid the entry and exit of personnel due to the need for sampling in the room, and the leakage of microbial aerosols cannot be avoided. It is easy to control, and it is difficult to effectively disinfect the contaminated environment and objects after the test, and there are biological safety hazards

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