How do I clean my things?

AFRANK GREENE, LEWISHAM

There’s a lot of tech which claims a lot of things. Does the PhoneSoap (from around £80) really use its magic light to thoroughly clean your phone of nasties? Guru doesn’t know. He knows what he thinks – that UV probably does neutralise a lot of stuff, but more stubborn crud might not succumb to its powers – but he doesn’t know the real science, and wouldn’t like to guess. Does a Dyson v11 (£599) actually capture 99.97% of all particles? It doesn’t in Guru’s rug, though given that many of those particles are crusty dried Weetabix (which, as we all know, is stronger than most mortar), perhaps that particular rug isn’t the ideal test case.

Which brings us to the part where GaGu’s science mind was really blown. Uncle Mucky Fingers was recently contacted by Egret, pushing the currently IndieGoGoing Egret EO Blaster. This appears to be a thing which, er, aerosolises salt water and blasts it on stuff?

Ten minutes later your mucky pawprints will be all over it again, but hey…

Something like that. And that’s enough to do some sort of hyperclean, one which – and this is a quote – ‘explodes bacteria’ without any harsh chemicals.

Does it work? Well, they provided Guru with many certificates and a ream of scientific verbiage with which to back them up. They say the portable device is as usable on public transport (if you don’t mind a few odd looks) as it is destroying the pesticides on your fruit. They say these things. But with Guru Towers’ in-house chemist currently on furlough there’s no way to tell if it’s actually true or just too good to be true.

Does the PhoneSoap really use its magic light to thoroughly clean your phone of nasties? Guru doesn’t know