Kei te wātea ngā papa tohatoha HDB-H me te huihuinga kawenga pumau, huihuinga pereti kawenga wehewehe rānei. He kuaha whakarewa kua oti te whakauru me te momo hopu "slam". Ka tukuna ngā papa katoa me ngā pae Kore me ngā pae Whenua kua whakauruhia, ā, kua hangaia te pae kore hei takai i te taputapu e haere mai ana kia mōhio ai he wāhi waea taapiri e wātea ana mō ngā taputapu e puta atu ana. Me whiriwhiri me te whakauru i te taputapu e haere mai ana e te kaiwhakauru. Ka taea te tango i ngā pereti repe o runga me raro, ā, kei roto hoki ngā mea whakakore hei hanga i ngā paipa rahi paerewa. Kua hipokina katoatia te huihuinga pereti, ā, he kotahi te hoahoa o ngā pae pahi, mā tēnei ka kore e puta he "wāhi wera" nā te mea kāore he hononga miihini. I rite ngā papa ki te BSEN 60439-1 me te 3.