BRUSH CARE 1. Store Purdy brushes in the yellow “keeper” package they’re sold in. Each custom-designed Purdy brush package is engineered to fit a particular brush and to apply the correct pressure on all sides while it’s stored, to keep its shape. Every model of Purdy brush is built with its own “chisel” (shape of the tip) to perform a certain job, and the keeper helps keep it that shape. Straighten the filaments with a Purdy brush comb before putting the brush away in the keeper.