Table 6. Visual analog scale well-being values for V1 and V3 at the 60-minute time point are used as base of operation to determine the improvement rate in percent. The p-value was calculated applying a t-test. „Improvement“ in the table means fewer symptoms using Respiray Wear A+ in comparison to symptom severity without a filter.

Allergen	Mean value – baseline (V1)	Mean value – with filter (V3)	Improvement rate (%)	p-value
Birch	21	14	31	0.5192
House dust mite	31	18	40	0.2556
Cat	31	16	46	0.2565