換気 かんき低下 ていか

kankiteika

1. Not decreased ventilation.; Not a decline in ventilation.

1. Ventilation was poor.

1. Reduced ventilation; Decreased ventilation

1. Poor ventilation; Reduced ventilation

1. Not decreased ventilation.; It is not a decline in ventilation.

1. It's not poor ventilation.; It's not a decrease in ventilation.

1. Ventilation was poor.; Ventilation had declined.

1. Reduced ventilation.; Decreased aeration.

1. It is not a decrease in ventilation.; It is not a decline in air circulation.

1. Was not decreased ventilation.; Was not a decline in ventilation.

1. Probably poor ventilation.; Likely reduced ventilation.

1. Was not poor ventilation.; Was not a decline in ventilation.

1. Wasn't poor ventilation.; Wasn't a decrease in ventilation.

1. Probably poor ventilation.; Likely reduced ventilation.

1. Was not a decrease in ventilation.; It was not a decline in air circulation.

1. If/when ventilation decreases; If/when ventilation is low

1. If ventilation is reduced; If ventilation decreases

1. If/when ventilation decreases; If ventilation is low