The longest-lasting decor does not fly at all. Garlands, arches and columns built from air-filled latex on a frame keep their shape for weeks indoors, because nothing is escaping and the balloons are not under the constant stretch that helium creates. For a shop window, an office or a month-long promotion, this is the only sensible option.
Among helium balloons, foil is clearly ahead. A well-sealed foil shape floats for several days and often more than a week, and it can be topped up through its valve afterwards and used again. Bubble balloons behave similarly, with the added advantage of a transparent shell that does not fade.
Latex is the shortest-lived by nature. On plain helium it stays up for around 8 to 16 hours, and with a HiFloat coating it typically reaches one to three days indoors. Heat, sunlight and air conditioning draft shorten all of these figures, and a stable air-conditioned room extends them.
- Air-filled garlands and arches on frames: weeks indoors
- Foil balloons on helium: several days, often more than a week
- Bubble balloons: comparable to foil, with a transparent finish
- Latex with HiFloat: usually one to three days indoors
- Plain latex on helium: roughly 8 to 16 hours