Daily cleaning: wipe with a soft cloth or sponge dipped in water or a neutral detergent, avoiding strong acidic or alkaline chemicals that damage the surface; regularly clean sealing wool piles and glass-seal key areas. Waterproofing: in humid seasons fill the gap between frame and wall with waterproof material to prevent moisture intrusion. Hardware care: regularly check handles, hinges and other fittings, tightening or replacing if loose or damaged. Seasonal care: in strong summer sun, check sealing and consider heat-insulation film; in winter add insulation material in the frame-wall gap. Special notes: do not step on the aluminium frame or pull it for support; repair or replace fallen gaskets promptly; regularly inspect bolts, pivot axles and air cushions, replacing or cleaning as needed.