Traditional blackboard cleaning method poses a risk to the respiratory system. Watch this video, on an alternative eraser created by this young student that curbs the chalk dust from spreading in the air and prevents airborne sickness.
Duster is an important element in a classroom, for cleaning the blackboard. But while erasing there are a lot of chalk particles that disperse in the air. This can cause respiratory problems. Therefore, to solve these problems, this student has devised a smart duster to get rid of chalk dust pollution. The model consists of … Continue reading “Absorbable Duster To Avoid Chalk Dust Pollution”