Anything upon which one of their carcasses falls will be unclean. If it is an oven or cooking pot, it must be smashed; it is unclean and will remain unclean for you.
KJV
And every [thing] whereupon [any part] of their carcase falleth shall be unclean; [whether it be] oven, or ranges for pots, they shall be broken down: [for] they [are] unclean, and shall be unclean unto you.
ASV
And every thing whereupon any part of their carcass falleth shall be unclean; whether oven, or range for pots, it shall be broken in pieces: they are unclean, and shall be unclean unto you.