<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by db7:
At HEL unless you have emerald OW status or travelling in a long haul premier cabin you are best to stay in the shengin area and use the lounges there. The business lounge in the non-shengin area is very basic.
</font>
And besides that they won't honour Oneworld status in the non-schengen area lounge. Only business class customers are allowed in. The queues are never long at immigration control so I suggest you stay in the Schengen area for as long as possible.