Zero In 3XZero In 60-Day Citronella Diffuser (Portable Insect Control, Lasts for 60 Days, Covers up to 40 cubic m)

Does just what it says on the product. Used all summer with Windows open not one bite in sight

Does what it says

They arrived just when I needed them, haven't really tested outside yet.

This stuff stinks a bit - but I suppose it's supposed to? It can make your eyes water if you are too close to it and you have it open wide. [You know the answer to that one though]I seem to be vacuuming up plenty dead flies so I presume it's working as advertised.

I rely on pure Citonella oil to stop biting insects - you'd be better off buying and investing in a reed diffuser as this made no difference to the flies. A blue light would be more beneficial.

Good product, good price does what it should depending on size of area may need to use more than one

Nice smell however flies still around sadly.

Not sure that this has had much impact on our conservatory, perhaps better in a smaller space as the aroma is not overpowering.