16. When a man has an emission of semen, he must bathe his whole body, and he remains unclean until evening.
17. Anything made of cloth or leather on which the semen falls must be washed, and it remains unclean until evening.
18. After sexual intercourse both the man and the woman must have a bath, and they remain unclean until evening.
19. When a woman has her monthly period, she remains unclean for seven days. Anyone who touches her is unclean until evening.
20. Anything on which she sits or lies during her monthly period is unclean.
21-23. Anyone who touches her bed or anything on which she has sat must wash his clothes and have a bath, and he remains unclean until evening.
24. If a man has sexual intercourse with her during her period, he is contaminated by her impurity and remains unclean for seven days, and any bed on which he lies is unclean.
25. If a woman has a flow of blood for several days outside her monthly period or if her flow continues beyond her regular period, she remains unclean as long as the flow continues, just as she is during her monthly period.
26. Any bed on which she lies and anything on which she sits during this time is unclean.
27. Anyone who touches them is unclean and must wash his clothes and have a bath; he remains unclean until evening.
28. After her flow stops, she must wait seven days, and then she will be ritually clean.