laboratory fume-hoods for extraction of dangerous fumes
{"Image Make": "Canon", "Image Model": "Canon EOS 50D", "Image Orientation": "Horizontal (normal)", "Image XResolution": "3793", "Image YResolution": "3793", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS4 Windows", "Image DateTime": "2015:11:09 23:12:22", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "232", "GPS GPSVersionID": "[2, 2, 0, 0]", "Image GPSInfo": "972", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "3793", "Thumbnail YResolution": "3793", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1086", "Thumbnail JPEGInterchangeFormatLength": "3712", "EXIF ExposureTime": "1/20", "EXIF FNumber": "8", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2015:11:09 14:58:07", "EXIF DateTimeDigitized": "2015:11:09 14:58:07", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ShutterSpeedValue": "35/8", "EXIF ApertureValue": "6", "EXIF ExposureBiasValue": "0", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "34", "EXIF SubSecTime": "00", "EXIF SubSecTimeOriginal": "00", "EXIF SubSecTimeDigitized": "00", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2987", "EXIF ExifImageLength": "4480", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "3124", "Interoperability RelatedImageLength": "4686", "EXIF InteroperabilityOffset": "916", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard"}