Smoke detector in cold storage (02) photo over 2 years 0 Smoke detector in cold storage (01) photo over 2 years 0 Smoke detector in cold storage photo over 2 years 0 DSCN0244 photo over 2 years 0 DSCN0243 photo over 2 years 0 A technician placing the repackaged influenza samples into a cold–storage environment within the laboratory setting. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”. photo about 3 years 0 Kitchen home freezer photo over 3 years 0