Table 1.

Number of included articles in laboratory or real environmental setting.

Technology	Laboratory		Field test	Total
	Single-pass test	Chamber test
Catalytic oxidation (including PCO)	18	3	0	21
Filtration	5	2	8	15
Ozone-related	2	0	0	2
Plasma	3	0	0	3
Sorption	5	2	1	8
UVGI	3	4	3	10
Total	36	11	12	59