Enchanting Beauty, I think there are particular challenges with working mobile.
The air inside cars is notoriously polluted and Covid virus can attach to pollution, so open your windows to air out the car and spray inside using a water spray with some antiviral essential oil added, before locking up, inbetween client visits.
I would definitely consider beeswax tea lights or tapers to help settle floating dust motes in the air which Covid virus can attach to. I don’t know why beeswax is better than paraffin wax - no-one makes claims about other waxes creating negative ions. Another advantage of beeswax is that it is practically smokeless when it burns. You can get salt lamp tea light holders which create a small field of negative ions when warmer than the air (salt is naturally sterile), but just have one because they’re really heavy. I’d pop this on my work station.
You could potentially use your water spray in your treatment space. Your clients will think you’re using aromatherapy to create atmosphere but actually you will be encouraging floating air particles to settle on surfaces. You need to be very careful not to breathe in the moist air though, so you’ll need to give the space a few minutes
I’d buy a copper bowl, or two. Not the manicure ones because they’re heavy and expensive. You want the lightweight ones that Indians use as cooking utensils. I bought my large ones from TK Maxx years ago and I’ve used nitromors to make sure they’re not lacquered. Check out eBay.
I use a copper Turkish coffee jug as a hot water holder, if you decide to do this - be careful of hot handles! You can also buy copper water bottles which hold heat, if you bring your own hot water. Be careful to ensure they are copper and not copper paint. Ayurveda bottles from India are ok, there are some UK suppliers.
To a tiny extent air coming into contact with copper will be purified. So the more copper around you, the safer the air. The copper things in your bag will reduce the multiplication of Covid viruses until you can sanitize everything at home.
When you strip off disposable gloves and masks, these need to be double bagged. Washable masks need to be bagged up before washing. Maybe use a copper bowl to hold these bags?