Table 1. Subjective feelings before and after wearing each mask in VAS score.
Data are presented as mean ± SD, the unit is mm.
| Evaluation item |
placebo mask | heated humidification mask | ||||
|---|---|---|---|---|---|---|
| before wearing mask | after wearing mask | p-value | before wearing mask | after wearing mask | p-value | |
| Dry nose | 43.9±27.2 | 33.6±24.2 | <0.01 | 42.1±26.8 | 24.0±21.0 | <0.01 |
| Dry throat | 43.6±25.1 | 35.6±25.1 | <0.01 | 49.5±26.2 | 31.1±22.7 | <0.01 |
| Nasal obstruction | 29.0±23.9 | 25.7±22.3 | N.S. | 34.7±26.0 | 19.5±17.3 | <0.01 |
| Ease to breathe | 56.0±27.2 | 58.3±22.8 | N.S. | 58.0±23.2 | 66.0±22.2 | <0.05 |
| Relaxation | 75.2±17.6 | 76.1±18.2 | N.S. | 69.7±19.0 | 78.0±13.3 | <0.01 |
| Calmness | 77.0±18.8 | 76.4±16.7 | N.S. | 73.5±17.6 | 78.8±14.5 | <0.01 |
| Good feeling | 68.5±16.9 | 69.1±16.1 | N.S. | 66.1±14.0 | 74.4±14.0 | <0.01 |