Table 1.

Percentages of dead house dust mites in the presence of activated charcoal fibres.

	10 min	20 min	30 min	40 min	50 min	60 min	70 min
A*	48.2% (41–57)	71.5% (50–82)	91.5% (82–96)	94.5% (86–100)	95.5% (87–100)	97.0% (91–100)	97.5% (92–100)
B**	25.8% (18–30)	53.5% (45–61)	80.8% (71–92)

*A: equilibrated at room temperature (48–53% humidity and 21–26°C).

**B: equilibrated in moisture chamber at 70% humidity and 25°C.

Results are means with range of values in parentheses.