u need this. 1 drop on a tissue every day, keeps the whole house smell free, 'tis nothing short of amazing, I have no idea why it isn't more widely available here, (is american).
Red Clover Tea is my favoutite, but the linen one is new and sounds nice, the baby one is vile and the citrus very strong but nice.
Another fab thing is to put a few drops on a cotton wool ball and put it in your hoover, then when you hoover lovely smell is disributed everywhere. Plus if you have clothes or dog blankets that still whiff after a wash you can put a couple of drops on a duster and pop it in with the clothes in the tumble dryer or just add a couple of drops to your detergent when washing. Also great in the bathroom and car.
I only found about it because I have rats too, it seems to only be available from two rat shops here, whilst in the US it is used everywhere, odd.