“…Emissions of hazardous pollutants from office equipment such as printers and photocopiers have become an important environmental issue related to indoor air quality (Tuomi et al, 2000;He et al, 2004;Destaillats et al, 2008;Morawska et al, 2013). Fine particulate matter (FP), which differs from gas pollutants (Shy et al, 2015;Ho et al, 2016;Lü et al, 2016), is one of the most important hazardous pollutants (Lee et al, 2001;McGarry et al, 2011;Mullins et al, 2013;Stephens et al, 2013;Hussein et al, 2015;Lin et al, 2015;Mašková et al, 2016) as it is highly associated with public health concerns as toxic aerosol due to persistent lung damage (Matson, 2005;Gehin et al, 2008).…”