3volution Plug In Refill Air Freshener - Twin Pack 20ml of 3 Scents Exotic Bloom Room Fresheners for Home Bundle. Plug In Air Freshener Refill, Odour Eliminator & Refresher with Topline Card.

These are three lovely scents that fit the threevolution unit. It’s worth noting that you get two sets of refills but the unit is not included.The scents alternate so that you do go nose blind to them. They easily fill a room on the max setting. I have it plugged in on my landing and it makes the whole hall / stairs and landing smell nice and fresh.My only complaint is that this is quite expensive at £14.95 for two. On doing research, I’ve found that you can often get refills for quite a lot less on Amazon.

I love this scent. You get 2 in the pack. The scent changes between the 3 oil reserves so you are always treated to a smell and your brain doesn't get used to the same smell. It's very effective. It is easy to use, they just slot into the plug-in. The refill lasts about a month on high and longer if you stick it on low or turn it off.