Komentarz do Ohalot 15:4

שחצצו – that he made in it a partition (i.e., a room which one partitioned off with boards or tapestry on the sides – walls – or on the ceiling).

[With regard to] a house, sectioned off by boards or curtains from the sides or from the roof beams: If there is uncleanness in the house, vessels beyond the partition remain clean. If there is uncleanness beyond the partition, vessels in the house become unclean. [With regard to] the vessels beyond the partition: The house has been sectioned into two parts such that what was one room is now two. Alternatively, some sort of loft was added such that the house is now separate from the roof beams. The mishnah now discusses what happens if the source of impurity is found in various parts of the house and its partitions. If the source of impurity is in the house then the vessels that are in the partitioned off inner room, or in the newly sectioned off upper room, remain pure. However, if the uncleanness is in the inner room or in the upper chamber, it goes out and defiles the vessels in the house because, as we have learned, impurity goes out of a confined space and defiles things that are in its space.

מן הצדדין – that the curtains and the boards were placed opposite/corresponding to the walls of the house.

If there is a space of a [cubic] handbreadth there, they become unclean, But if not, they are clean. As far as the petitioned off areas themselves, if they are at least a cubic handbreadth in dimension, then they are an ohel and they are impure. However, if they are less than a cubic handbreadh, then the impurity within would only go up and down and it wouldn't defile any vessels found on the sides of such a space.

או מן הקורות – that they were placed underneath the ceiling of the house.

כלים שבחצץ טהורים (vessels that are in the space between two partitions/the vacuum) – that the curtains and the boards interpose, and are considered like vessels that are on the roof and like vessels that are outside of the wall.

כלים שבבית טמאים – for there is no interposition for defilement, for this resembles an earthenware vessel that is surrounded with an airtight lid, for if the defilement that is in the house it protects over what is within it, but if the defilement is within it, there is no airtight lid for defilement.

כלים שבחצץ – the vessel that is with the defilement with in the partition.

אם יש פותח טפח – that there is an empty space/cavity which is a handbreadth wide.

ואם לאו טהורים – the vessels that are in the space between the two partitions/the vacuum [are pure]. But a house however is impure.