Evolution of Mortein mosquito repellant machines

Mortein started with this capped hut design for their mosquito repellent machines in 2005. 

This was later replaced by this red and white ball design which was aesthetically pleasing to the eyes.

 The third and latest design is this red and grey ball design with the addition of of a vaporizer control which allows users to reduce the emission of repellent liquid according to their requirements.

This compact design was introduced in 2017 and is the 3rd iteration

Update 8 July '16

Mortein has also changed the liquid bottle that comes with the vaporizer (shown below).

New

Old