What Should Considered During
Implementation of all UVGI systems?
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UVGI lamp fixtures must be carefully installed >2.1 meter (Must have baffles or louvers if lower than that) to minimise exposure of UV-C to occupants in the room. The exposure to UV incident radiation on unprotected skin or eyes should be within the limits (8 hr exposure: 6 mJ/cm2 for 254 nm)
UV-C systems should not generate ozone gas (<0.05 ppm, 8 hr) JKKP Code of Practice 2010 for Indoor Air Quality for Air-Conditioned Buildings.
All organic material components within 1.5 m of the UV lamp should be shielded, as UV-C energy can be detrimental to organic materials (e.g. plants, certain filter media and insulation or gasket foams in ACMV systems, wood surfaces, and wallpapers).
Regular verification of the performance of the UV-C systems should be carried out after installation to ensure continued safety and efficacy.
Measurement should be taken in the lower room to estimate the UVGI exposure level of room occupants.
Measurement of Lamp at least 1.2m away. Average measures should be 30uW/m2 to 50uW/m2.
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