Reeds do not last forever. Over time they can become clogged with fragrance oil and dust, which makes it harder for them to draw the liquid up and release scent into the room. If your diffuser seems weak, replacing the reeds is often the quickest and most effective fix.

If your diffuser is placed in a draught, near an open doorway, or in a very airy space, the fragrance can disperse too quickly to be noticed properly. Moving it to a more enclosed area, away from strong airflow, often improves performance.

A single diffuser may not be enough for a large room or open-plan space. In bigger areas, the scent can feel much weaker simply because there is more air to fragrance. In this case, you may need more than one diffuser or a stronger home fragrance option.

Sometimes the diffuser is working perfectly well, but you have become used to the fragrance and notice it less. This is very common with home fragrance. Try leaving the room for a while and coming back, or ask someone else if they can still smell it.

Turning the reeds can refresh the scent because it exposes the saturated ends to the air. This should be done carefully and not too often, as frequent turning can use the liquid more quickly. It is best done over a protected surface in case of drips

Some fragrances are naturally lighter and fresher, while others are deeper and more noticeable. Citrus, linen and soft floral scents can feel more subtle than richer notes such as amber, spice or dark fruits. If you prefer a stronger scent, it may be worth choosing a more intense fragrance.

If the liquid is running low, the reeds are old, or the scent remains weak after changing position, it may simply be time for a refill and fresh reeds. Replacing both usually gives the best result and helps your diffuser perform properly again.