How to distinguish between the mattresses with 20% enhanced quality and the unrenovated ones?
It is impossible to visually define if a mattress is of 20% enhanced quality. Precise distinction will be made with either a specialized measurement tool or production parameters. In addition, as of 9 February 2009, KYMDAN mattresses, lounge suits and beds are offered 6-year maintenance policy (in Vietnam), no unqualified products can be found.
