INHALATION EXPOSURE SYSTEM
吸入暴露机

MODEL: 099C A4224

机器包括：
LID
盖子x1

ULTRAVIOLET LAMPS:
紫外灯x2

BASKET:
不锈钢篮子x1

CHAMBER:
容器x1

BAFFLE:
缓冲板x1

CABINET:
柜子x1

NEBULIZER:
雾化器x1

CONTROL VALVES:
控制阀x2

FILTERS:
滤器x2

PROGRAMMABLE CONTROL:
可编程控制器x1

FLOWMETERS:
流量计 x2

INTERLOCK MICRO SWITCH:
联锁微型开关x1

FUSES:
保险丝x6

AIR COMPRESSOR:
空气压缩机x1

VACUUM PUMP:
真空泵x1

INCINERATOR:
灭菌器x1

INTRODUCTION OF THE INHALATION EXPOSURE SYSTEM:

吸入暴露机的特点：
1．能使动物重复地暴露在下降状态的污染和感染原环境中。它产生的肺部深层感染与真实环境极为相似。

2．我们能改变吸入暴露机中的变病原体的浓度、流动的速率和暴露的时间，这样实验的重复性就得到了保障。

3．它是通过使动物吸入病原体后来定量检测其感染状况的机器。

机器的核心部件是已放有悬浮液的雾化单元，悬浮液与吸入的经Hepa 滤器过滤的非灭菌的空气在低压的环境下使得悬浮液产生雾化。通过改变悬浮液中的微生物数目， 细菌的细胞核的数目相应改变。机器可按时控制进入容器内的空气体积。

动物被放在腔内的分隔网篮中。整个机器总是在负压下工作。

可编程控制器可对预热、雾化、尘雾衰减和去污周期进行控制。
Hepa 滤器和紫外灯用来清洁机器


吸入暴露机图解

INHALATION EXPOSURE SYSTEM

The Inhalation Exposure System provides reliable, repeatable exposure.
Provides reproducible exposure to droplet-borne contaminants and infectious agents.
Produces deep-lung infections that more closely simulate real-world circumstances.
Allows user to vary pathogen concentration, rate of air flow, and length of exposure.
Uses improved filtering, an air incinerator, and ultraviolet lamps to aid in decontamination.
Offers increased efficiency through the use of an Allen Bradley programmable control.
Product Number Description
099C A4212 Inhalation Exposure System 120V, 60Hz. AC
099C A4224 Inhalation Exposure System 240V, 50Hz. AC


Component Specifications
Chamber An anodized aluminum tank, 22-3/4" in diameter by 22" deep, with a volume of 5 cu. ft., constitutes the infection chamber.
Basket A stainless steel, wire mesh basket, 22" in diameter by 14" deep, is provided. The opening in the basket lid can be rotated to each of 5 equal compartments. Each compartment can hold 20 mice, 3-4 guinea pigs, or one rabbit; for a total of 100 mice, 15-20 guinea pigs, or 5 rabbits.
Lid A clear acrylic lid, impervious to ultraviolet rays, supports the UV lamps and sample port. Four latches provide pressure on the tank gasket to seal the lid to the chamber.
Cabinet The apparatus is housed in a sturdy stainless steel cabinet, mounted on casters. Flowmeters, controls, and nebulizer are mounted on a recessed panel. Cabinet size is 30" wide by 33" deep by 33" high. Weight is about 170 pounds. The incinerator is at the right rear corner of the cabinet. Depending on position, it adds 11" to either the depth or the width. A minimum space of 6" is recommended between the incinerator and adjacent walls or other equipment.
Filter The exhausted air passes through an HEPA filter unit with a glass fiber medium that has a minimum efficiency of 99.;97% on particles as small as .3 micron. Filters are individually DOP tested at a flow rate of 100 CFM at 1.2"w.g.
Controls Allen Bradley programmable control regulates the four cycles of the Inhalation Exposure System (preheat, nebulizing, cloud decay, decontamination) and increases its efficiency. Displays time in seconds.
Flowmeters Two durable and easy-to-read flowmeters accurately measure the airflow to the chamber. The compressed air line flowmeter has a range of 2 to 20 SCFM, and the main air flowmeter has a range of 10 to 100 SCFM.
Nebulizer An all-glass nebulizer-venturi unit with septum is provided for atomizing the suspension under pressure and combining it with the air drawn in from the room to provide the proper mixture to be delivered to the chamber.
Pumps The system features a very quiet and reliable vacuum pump to provide adjustable flows through the tank of up to 1.67 CFM.
Incinerator The system is supplied with an air incinerator on the outlet.



The Inhalation Exposure System features an incinerator mounted on the rear of the cabinet as shown above.