Table 3.

SARS-CoV-2 results from three active and one passive air sampling technique used during the outbreak investigation from patients with positive oropharyngeal swab

	CIS- inhalable dust	SKC Bio-sampler - Impinger	CDC-NIOS Hcyclone- based bioaerosol *	EDC - settling dust
	n (%)	n (%)	n (%)	n (%)
Negative (‐ ‐)	9 (30)	4 (40)	2 (20)	2 (17)
Inconclusive (‐ +)	2 (7)	1 (10)	1 (10)	0 (0)
Positive (+ +)	19 (63)	5 (50)	7 (70)	10 (83)

*If one of the fractions of the cyclone-based sample detected SARS-CoV-2, the overall parameter is classified positive.