Electric spray gun
It is not recommended for users to use general spray guns because the accessories and air pressure are not correct. On the one hand, the paint is wasted. On the other hand, the mist powder particles are too large. Nanomolecules cover each other. The pollutant decomposition efficiency after sticking to the wall. It will also be greatly reduced.
If you spray too much, the nano molecules will overlap each other, and the effect of decomposing pollutants is not good. It is usually enough to spray two or three times at home.
If the level of formaldehyde pollution is high, you can spray for second time. (after the solution is dry at first time.)
No water droplets occur if you spray well. Otherwise, wipe it off with wet cloth before the solution is dry.