The modern urban office environment is comfortable, but the problem of high work pressure and over-concentration, let us spend more time on the media and social software communication. We need the necessary rest, the release of pressure, which is an imminent need, just like a volcanic eruption. Use an imminent disaster to remind you that it is time to leave the computer and have a good rest. Use emergencies to divert your attention from the media, but this is another interesting thing that makes you smile and experience the feeling of leisure. "Volcano erupts!!" Using the pressure sensing technology of the water level, the preparation before release is reached for 2 hours. After 2 hours, the water level reaches the upper line, the red led light is turned on, the water level overflows, and the spray is accompanied. "Volcano goes out" takes out the water cup, water the mountain pass, LED lights, spray off. Then use gravity to sink the water level. Reach the balance of lifting and returning to normal. The modern city office environment is comfortable, but the work pressure is high, the work concentration problem is excessive, let us spend more time on the media, as well as the social software communication. We need the rest we need, the release of pressure, the immediate need, just like a volcano erupts. Remind yourself of an impending disaster that it's time to get off your computer and have a good rest. Use the urgency to take your attention away from the media, but it's also a fun thing to laugh at and feel relaxed. "Volcano !! Using the pressure sensing technology of water level, prepare before reaching 2 hours' release. After 2 hours, the water level reaches the line, the red led light is turned on, and the water level overflows with the spray. "Volcano extinct" takes out a water glass, pours water on the mountain pass, turns off the LED lights and sprays. Use gravity to push the water down. Reach the balance of rise and fall, return to normal.