How does the architect of a luxury apartment choose door closers?
Regular door closers are ruled out first. They are huge, invasive to aesthetic design, fragile under frequent use, and prone to be broken by wind. Their closing speed is unstable under different temperatures and regular readjustment and maintenance is needed.
Floor spring is seemingly an ideal choice. However, it is discarded for its laborious installation. To install a floor spring, you need to cut open the floor, embed the floor spring, and use concrete or other adhesives to fix it. The procedures will be dusty, noisy, and timeconsuming which would be a massive annoyance for the dwellers in the luxury apartment.