The right tools for the frame and glass

A framed poster of Roberto Sambonet's work sits behind glass or acrylic, and that surface is what you actually touch most often. Use a clean microfiber cloth for routine dusting. Paper towels scratch over time and leave lint behind. For the glass, a standard ammonia-free glass cleaner sprayed onto the cloth works better than spraying the frame directly. Moisture that runs down into the frame can reach the mat and the print edge. A soft brush works for the frame's carved details if the frame is ornate. Test any cleaner on a small hidden corner first. The goal is to remove grime without leaving a film that catches the light.

The frame itself may be wood, metal or composite, and each surface tolerates different treatment. A dry cloth handles most dust on metal frames. Wood frames with a wax or oil finish need only a barely damp cloth, wiped dry immediately. Avoid furniture polish on a picture frame unless you know the finish well. Polish builds up in the corners and turns dull over months. If the frame has a patina or an aged finish, treat it gently and rarely. Over-cleaning a frame removes more than dirt. It removes the surface character that came with the object's age.

Keeping the print itself in good condition

The print behind the glass does not need cleaning in the ordinary sense. Dust that settles on the glass is the problem you can solve. Dust that reaches the print usually means the seal on the frame has loosened or the backing has shifted. Check the backing paper or board once a year. If it has gone soft or yellowed, ask the framer about replacing it before moisture gets in. Maintaining art prints is mostly about preventing the conditions that make cleaning necessary. A stable room does more for the print than any cloth does. Keep humidity moderate and avoid hanging the frame above a radiator or in a bathroom.

Sunlight is the slowest damage you can ignore. A Roberto Sambonet poster placed in a south-facing window will fade unevenly over a few years, and no cleaning routine reverses that. Rotate the frame seasonally if the room gets strong light on one wall. A sheer curtain cuts the worst of the exposure without darkening the room. If the print is valuable to you, treat the glass as the first line of defense and the room as the second. Both matter more than the cloth in your hand. The print's surface stays intact when the environment stays steady.

Hanging, handling and the small risks

How you hang the frame changes how often you clean it. A frame hung too low collects dust from shelves and traffic. One hung above a doorway picks up grease from hands and air movement. Give the frame some space from the wall so air can move behind it, which reduces the chance of moisture settling. Use two hooks for a larger frame so it hangs level and does not twist over time. A twisted frame puts uneven pressure on the glass and the backing. That pressure is what loosens a seal quietly, long before you notice anything wrong.

When you need to move the frame, carry it by the frame itself, not by the glass or the hanging hardware. Set it face up on a clean flat surface only when you must, and never lean it against a wall on its face. The glass can chip on a protruding corner, and the print edge can be marked by a rough surface. If you are choosing between a canvas print and a framed poster for a room that gets handled often, the framed poster protects the image behind glass while the canvas shows every fingerprint. choosing between a canvas print and a framed poster is a separate decision, but the care routine above applies to whichever you own.