objectives of the proposal : • problem :- while using chalkboard the chalk dust particles that comes out while rubbing has become a threat to human health and environment. • drawbacks:- reduced lifetime of duster in turn reduces lifetime of chalkboard , discomfort, less efficiency and high cost in some models. • proposed invention:- handy dust free duster for smart classroom which eliminates the problem of respiratory ailments and other discomforts. • incremental step:- to increase the efficiency of the product by further optimizing the design.