选型换气式老化试验箱时应对设备本身注意以下要求:    
1、加热器件不得构成对试验样品的直接辐射。     
2、换气式老化试验箱应具有温度调节、指示、记录等仪器或装置。                                                                                                                                                                                                                                                                                                                 3、应有放置或悬挂样品的样品架，样品架在高温条件下应具有一定的机械强度并便于装卸。    
4、箱门有密封条应不易在高温条件下老化、发粘、变形、失去密封性能，并应便于更换。    
5、外观涂层应平整光滑、色调均匀、不得有露底、起泡、起层或擦伤痕迹。

温度波动度：±0.5℃
温度均匀度：±2.0℃
解析度：±0.1℃
空气换气次数:1-100次/h
试验定时范围：0.999.9
换气时间：0.99.9（s、m、h）
可调换气方式：仪表控制自动换气。
循环方式：风扇强制循环方式。

结构特点： 
1、箱体采用数控机床加工成型，造型美观大方、新颖并采用无反作用把手，操作简便。                                                                                                                                                                                                                                                                               2、箱体内外胆均采用进口高级不锈钢镜面板或304B氩弧焊制作而成，箱体外壳采用A3钢板喷塑，增加了外观质感和洁净度。 
3、采用具有温控保护的智能化程序微电脑控制器，带定时功能，控温精确可靠。换气的时间和次数均可任意设置。 
4、设有大型观测视窗附照明灯保持箱内明亮，且利用钢化玻璃，随时清晰的观测箱内状况。                                                                                                                                                                                                                                                                 5、热风循环系统由能在高温下连续运转的风机和特殊风道组成，工作室内温度均匀。                                                                                                                                                                                                                                                                             6、老化箱装配有低转速转盘，试验样品家具安装在圆型转盘上合适的位置。                                                                                                                                                                                                                                                                                               7、箱体保温采用超细玻璃纤维保温棉，可避免不必要的能量损失。                                                                                                                                                                                                                                                                                                             8、箱体左侧一测试孔，可供外接测试电源或信号线使用。                                                                                                                                                                                                                                                                                                                                   9、机器底部采用高品质可固定式PU活动轮。