Hi, I did not like the MystKing because it was more of a spray than fog, and I prefer fog by far, as it does not leave the foliage wet and it is less of a problem for fungus.
I use 2 type of fogger, both on automatic humidity controller. When the humidity get to a certain level, the controller start the humidifier and the fog goes into my grow tent. For my small grow tent, I bought these, and with a full refill it last for 4 to 5 days:
Loviver Amphibiens pour aquarium 3 L avec système de brouillard pour reptiles : Amazon.ca: Animalerie
www.amazon.ca
with the controller:
Inkbird ITC-608T Contrôleur de température et d'humidité 1800 W Thermostat 12 périodes avec sonde d'humidité : Amazon.ca: Commerce, Industrie et Science
www.amazon.ca
For my large grow tent, I did a DIY fogger with a fan and a floating fogger:
Amazon.com: Popsport Mist Maker Fogger 12 Head Ultrasonic Mist Humidifier 110V Mist Maker Fogger Humidifier with Transformer for Gardening and Pond Use (12 Head Mist Maker): Garden & Outdoor
www.amazon.com
and I use a grow tent fan and tubing to bring it inside the grow tent. It is also on a controller, but only for humidity as I realized I did not need the controller for the temperature, only for the humidity:
Inkbird IHC-200 Contrôleur d'humidité numérique pré-câblé pour humidificateur déshumidificateur terrarium reptile : Amazon.ca: Animalerie
www.amazon.ca
A fogger is a really nice thing to have. It keep the humidity at perfect level without wetting the plants.