antiseptic

a substance that destroys micro-organisms that carry disease without harming body tissues

thoroughly clean and free of or destructive to disease-causing organisms; "doctors in antiseptic green coats"; "the antiseptic effect of alcohol"; "it is said that marjoram has antiseptic qualities"

clean and honest; "antiseptic financial practices"

freeing from error or corruption; "the antiseptic effect of sturdy criticism"

devoid of objectionable language; "lyrics as antiseptic as Sunday School"