All devices leak

I purchased a Twisp Edge in November 2015 and used it to switch from smoking. It constantly leaked and I had to be continually clean the device with a tissue to prevent having the liquid coming into my mouth. I called Twisp and they said I must go to Kiosk. The nearest one to me is over 500 km away so I had to wait until I went to the city on business. In the meanwhile I purchased a Twisp Aero in February 2016 as I did not want to start smoking again. Turns out it has the same problem and has to be continually cleaned and dried out of excess liquid. Everytime you clean them you lose your expensive liquid too! I eventualy went to the kiosk in Gateway UR and the young gentleman was very helpful and sorted out the Edge and the Aero which worked for a few days and then both leaked again. I believe these devices have not been correctly designed and they will never be able to stop them leaking. I am sure the liquid is toxic when swallowed and could be slowly causing poisoning! Alas I have gone back to smoking now and will be sending both devices back to Twisp and asking for a refund and searching for a reliable device.