Vaisesika Sūtra 2.1.16

सामान्यतो दृष्टाच्चाविशेषः ॥१६॥

sāmānyato dr̥ṣṭāccāviśeṣaḥ ॥16॥

[सामान्य तः दृष्टात् च अविशेषः॥
sāmānya = generality; taḥ = from that; dr̥ṣṭāt = perceived; ca = even; aviśeṣaḥ = without distinction;]

It's (Air's) perception property is a generality, as it is without distinction.