“…Depending on their purpose, rooms can be divided into residential, office, or public utility (hospitals, museums, schools, or churches). Rooms can be used for sleeping, hygiene, health care, (Chao & Chan, 2001) Museums BTEX, naphthalene, benzoic acid, limonene,SO 2 , NO 2 , O 3 , formic acid, acetic acid (Krupińska, Van Grieken, & De Wael, 2013), formaldehyde, styrene, benzaldehyde (Schieweck, Lohrengel, Siwinski, Genning, & Salthammer, 2005) Libraries VOCs, formaldehyde (Chao & Chan, 2001), SO 2 , NO 2 (Andretta, Coppola, & Seccia, 2016) Temples and churches NO 2 (Worobiec et al, 2006), formaldehyde, BTEX (Zhang, Chen, Li, Yu, & Zhao, 2015) Schools VOCs, SVOCs, polychlorinated biphenyls (Herrick, Stewart, & Allen, 2016), D-limonene, formaldehyde, acetic aldehyde, benzene Hospitals VOCs, radon (Śmiełowska, Marć, & Zabiegała, 2017), N 2 O, formaldehyde, glutaraldehyde, ethylene oxide (Zeiger, Gollapudi, & Spencer, 2005), BTEX (Dascalaki, Lagoudi, Balaras, & Gaglia, 2008), acetaldehyde, phthalates (Wang et al, 2015) Elderly care centres Nitrogen oxides, formaldehyde, VOCs (Mendes et al, 2015) Underground parking BTEX (Marć, Śmiełowska, & Zabiegała, 2016) Electronic Noses for Indoor Air Quality Assessment entertainment, as well as for preparing and consuming food. In this chapter, the authors focus on indoor air quality in food preparation and processing facilities.…”