Bad news I'm afraid Carl, as from April 1st the Gov is introducing a new law charging all those living within the M25 for the air they breath...Called the ''Spare Lung Tax'' you'll have to have one of those tests where you blow the thing that measures lung capacity, then they multiply it by 2 & multiply that by Pi if you have two lungs & by slice of Pi if you only have one. Of course if you a smoker your lung capacity will be lower & therefore you'll pay less ''SLT'' so taking this into consideration & despite the fact that you already pay bundles of tax on Tab's N Baccy, smokers will be charged double. As will owners of gas guzzling motahs with Hoooooog carb's & not nice green Fi vehicles. All this despite the fact that breathing the air anywhere within the M25 is still full of particulates n shite anyway. Apparently If you can hold your breath all day your exempt on Sunday.
You jest but that is exactly what may happen one day with the way things are going in this country. I realise we are not paying for the air exactly, but the maintenance of the compressor. You never know but one day the world may suffer from such extreme global warming that we will all live under giant domes where air is filtered through to us. We may then be charged for it.
Lung capacity would be Peek flow.
(:-})