Reference for Zevachim 6:1

אם הציל במת חמור שכן חלוקה באוהלין תציל בכלי חרש הקל שאין חלוקין באוהלין

if it protects in the case of a corpse, which is stringent, that is because it is divided into tents;<span class="x" onmousemove="('comment',' A single partition across a room is sufficient to divide it into two rooms, and if a corpse is in one, eatables or utensils in the other are not contaminated. Hence it is right that even a defective receptacle should have the same effect.');">¹</span>

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