Safeguard in cleanness on, ferial brush away dust should be brushed with wool when adventitious, or dirt concentration reoccupy cleaner is inhaled, must not flap forcibly, lest create needless weight bear, such ability prolong the life of sofa bed.

• 在清洁维护上，平日应不定时以毛刷刷去灰尘，或将灰尘集中再用吸尘器吸去，千万不要用力拍打，以免造成不必要的重量负荷，这样才能延长沙发床的寿命。