###### Abstract
However, the Anvisa and the Directorate of Sanitary and Environmental Surveillance of the State of Bahia (Divisa BA) [30] authorize the use of chambers and devices with regulated pulverization or spraying systems of biocidal agents for the disinfection of surfaces in controlled environments, such as hospitals and healthcare units, and for the decontamination of personal protective equipment (PPE) [29; 30]. The use of chambers in hospitals and healthcare units during the COVID-19 pandemic for the instantaneous disinfection of PPE before the doffing process can be an important tool for the additional protection of professionals working directly with patients who are diagnosed with COVID-19. Healthcare workers are considered worldwide as one of the most vulnerable groups to pathogen infections, including SARS-CoV-2 [31; 32]. This may be due to their close contact with patients and contaminated environmental surfaces, which may also be responsible for high mortality rates in this group [33; 34]. Considering only the numbers associated with COVID-19, more than 3000 health professionals were infected in China, with a mortality rate of 1.1% [35; 36]; the infection rates in Italy and Spain were 20% and 26%, respectively [37; 38]. In Latin American countries such as Ecuador and Bolivia, this rate reached 10% [39], while in Brazil more than 257,156 healthcare professionals were infected [40]. Currently, the incidence of COVID-19 among this population is related to vaccination and the appearance of new variants of SARS-CoV2-2, which usually have a greater capacity for infection [41; 42]. In this context, the use of PPE is considered to be the main option for the protection of health professionals, since such equipment provides a physical barrier against infectious agents [43]. However, the PPE doffing process should be performed following strict biosafety protocols [44]; PPE doffing is characterized as a critical step, and cases of self-contamination have been reported [45]. Different studies have pointed out the high bioburden, especially the molecular detection of SARS-CoV-2, in places that are targeted for PPE doffing [46]. This condition has mainly been related to the contact that healthcareworkers have with aerosols that are generated from the care of patients who are diagnosed with COVID-19 [47]. Therefore, different initiatives to prevent self-contamination of healthcare workers during the COVID-19 outbreak were discussed and considered [48]. In a recent study of our group [49], the efficacy of the chamber for the instantaneous disinfection of seven different types of PPE using a low concentration sodium hypochlorite solution as a biocidal agent was demonstrated [50; 51; 52]. The potential for its use during the COVID-19 pandemic in one step prior to the PPE deffing process was also reported [53]. The use of chambers and other technologies for disinfection can be considered as promising options, provided that their effectiveness, as well as their safety, are proven [29; 30; 54]. However, in addition to the analysis of the effectiveness for inactivating microorganisms or for reducing microbial load, evaluating the perception of professionals regarding the use of these new technologies is also of fundamental importance. Most of the studies are focused on evaluating the performance of new devices, being limited to the evaluation of technical parameters, such as the ability to reduce the bioburden on the surface, the time required for this action, and what is the best biocide agent, among others [55]. Nevertheless, knowledge about the perception of professionals about new technologies is important for adherence to the proposed method, the evaluation of safety parameters, and the determination of possible adverse effects, which are relevant when carrying out studies with this proposal [56]. Thus, the aim of this work was to evaluate the perception of various professionals regarding the use of a new technology (chamber) for the instantaneous decontamination of PPE before the PPE deffing process.