UVC (254 nm) Irradiance and Dose Measurements on MUV-XH Mobile Room Sterilizer

Independent performance verification is an important step in product development and commercialisation process. CW Technology has engaged CAPPA in order to verify the performance (irradiance and dose) of their MUV-X room sterilizer.

The irradiance and dose values were measured with UVPAD E spectral radiometer with external fibre coupled sensor head (Opsytec DE) 1. These measurements were taken over 120s time window. Prior to the measurements’ bulbs were warmed up over 120s. For each distance (0.5m, 1m, 2m) 2 measurements were taken (or attempted in case of too low signal): one with sensor head oriented perpendicularly to the plane joining 2 most adjacent bulbs (denoted as orientation ꓕ) and another one with sensor head oriented parallel to the plane joining 2 most adjacent bulbs (denoted as ‖). For each measurement, sensor head was held at half the bulb length.