Upper Air Room Disinfection Solution

Disclaimer:-
Upper Air Room Disinfection Solution is not a medical device and is not intended for use to disinfect medical devices, rooms and/or spaces that are furnished with medical devices and/or for medical purposes.

*Tested in an MOF recognized and ISO certified lab.

Harvard Business Review, Research: Stale Office Air Is Making You Less Productive, 21 March 2017

2009-105 NIOSH Guidelines Environmental Control for Tuberculosis: Basic Upper-Room Ultraviolet Germicidal Irradiation Guidelines for Healthcare Settings

±Occupational exposure guidelines for UVGI have been developed by CDC/NIOSH [NIOSH 1972] and the American Conference of Governmental Industrial Hygienists (ACGIH) 6 Environmental Control for Tuberculosis [2007]. The CDC/NIOSH recommended exposure limit (REL) is designed to protect workers against eye and skin injury. Detailed examples for calculating the REL at different UV wavelengths are provided in the CDC/NIOSH [NIOSH 1972] criteria document. Based on the CDC/NIOSH REL, the maximum recommended exposure to UV is 6 mJ/cm2 at 254 nm for a daily 8 h work shift. The ACGIH threshold limit value (TLV) at 254 nm is 6 mJ/cm2 in an 8 h period. These recommended exposures correspond to a maximum recommended irradiance of 0.2 µW/cm2 for 8 h exposure to UVGI at a wavelength of 254 nm. The ACGIH TLV also stipulates that these values should be used as a guide for control of exposure to continuous sources for exposure durations equal to or greater than 0.1 seconds. Upper-room UVGI system designers have used 0.2 µW/cm2 as the maximum lower (occupied) room irradiance [First et al. 2005; Nardell et al. 2008] to limit the irradiance level in the lower room to the 8 h REL. Some researchers [First et al. 2005; Nardell et al. 2008] believe this limits the irradiation level in the upper room thereby decreasing the potential effectiveness of the system. Many workers move around during the course of their work and may not be exposed to a single irradiance level during their work shifts [CDC 2005a; First et al. 2005; Nardell et al. 2008]. Recommended exposures for work shifts of greater than 8 h in a 24 h period can be calculated using the formula provided and noted by permissible exposure times (PET). The recommended levels should not be used for photosensitive persons, persons concomitantly exposed to systemic or topical photosensitizing agents, or persons who have had the lens of the eye removed during cataract surgery. Workers exposed to UVGI above the REL require the use of personal protective clothing and equipment to protect their eyes and skin. At 254 nm, the CDC/NIOSH REL is 6 mJ/cm2 (6000 µJ/cm2 ). Permissible exposure times (PET) for healthcare workers can be calculated for various irradiance levels as follows.