<unk> <unk> <unk> <unk>  Options: - Use a wooden box of required size and punch holes on the for allowing air passage. - Use a wooden box of required size and punch holes on the for allowing air passage. - Choose a metal box of required size, with holes punched on them for air passage. - Choose a metal box of required size, with holes punched on them for air passage. - Choose a metal box of required size, with holes punched on them for air passage.  ️<unk>️<unk>️<unk>️<unk>️
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