Buyers must choose between wall-mounted, floor-standing, or window-sill integrated models. For B2B projects, wall-mounted units are often preferred for space-saving and permanent integration. Ensure the supplier provides comprehensive mounting kits and clear installation manuals. If sourcing for retail, portable models with wheels or stable feet offer higher market versatility. Always confirm the plug type (Type A, C, G, etc.) and voltage compatibility (110V vs 220V) matches the target market's infrastructure.